21665448

素因数分解:

$2^3\times 3^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:141

約数の個数: 192

約数和(自身を含む): 73872000

約数和(自身を除く): 52206552

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 27, 28, 36, 42, 46, 49, 54, 56, 63, 69, 72, 84, 89, 92, 98, 108, 126, 138, 147, 161, 168, 178, 184, 189, 196, 207, 216, 252, 267, 276, 294, 322, 356, 378, 392, 414, 441, 483, 504, 534, 552, 588, 621, 623, 644, 712, 756, 801, 828, 882, 966, 1068, 1127, 1176, 1242, 1246, 1288, 1323, 1449, 1512, 1602, 1656, 1764, 1869, 1932, 2047, 2136, 2254, 2403, 2484, 2492, 2646, 2898, 3204, 3381, 3528, 3738, 3864, 4094, 4347, 4361, 4508, 4806, 4968, 4984, 5292, 5607, 5796, 6141, 6408, 6762, 7476, 8188, 8694, 8722, 9016, 9612, 10143, 10584, 11214, 11592, 12282, 13083, 13524, 14329, 14952, 16376, 16821, 17388, 17444, 18423, 19224, 20286, 22428, 24564, 26166, 27048, 28658, 30429, 33642, 34776, 34888, 36846, 39249, 40572, 42987, 44856, 49128, 52332, 55269, 57316, 60858, 67284, 73692, 78498, 81144, 85974, 100303, 104664, 110538, 114632, 117747, 121716, 128961, 134568, 147384, 156996, 171948, 200606, 221076, 235494, 243432, 257922, 300909, 313992, 343896, 386883, 401212, 442152, 470988, 515844, 601818, 773766, 802424, 902727, 941976, 1031688, 1203636, 1547532, 1805454, 2407272, 2708181, 3095064, 3610908, 5416362, 7221816, 10832724, 21665448]

約数ペア:

[(1, 21665448), (2, 10832724), (3, 7221816), (4, 5416362), (6, 3610908), (7, 3095064), (8, 2708181), (9, 2407272), (12, 1805454), (14, 1547532), (18, 1203636), (21, 1031688), (23, 941976), (24, 902727), (27, 802424), (28, 773766), (36, 601818), (42, 515844), (46, 470988), (49, 442152), (54, 401212), (56, 386883), (63, 343896), (69, 313992), (72, 300909), (84, 257922), (89, 243432), (92, 235494), (98, 221076), (108, 200606), (126, 171948), (138, 156996), (147, 147384), (161, 134568), (168, 128961), (178, 121716), (184, 117747), (189, 114632), (196, 110538), (207, 104664), (216, 100303), (252, 85974), (267, 81144), (276, 78498), (294, 73692), (322, 67284), (356, 60858), (378, 57316), (392, 55269), (414, 52332), (441, 49128), (483, 44856), (504, 42987), (534, 40572), (552, 39249), (588, 36846), (621, 34888), (623, 34776), (644, 33642), (712, 30429), (756, 28658), (801, 27048), (828, 26166), (882, 24564), (966, 22428), (1068, 20286), (1127, 19224), (1176, 18423), (1242, 17444), (1246, 17388), (1288, 16821), (1323, 16376), (1449, 14952), (1512, 14329), (1602, 13524), (1656, 13083), (1764, 12282), (1869, 11592), (1932, 11214), (2047, 10584), (2136, 10143), (2254, 9612), (2403, 9016), (2484, 8722), (2492, 8694), (2646, 8188), (2898, 7476), (3204, 6762), (3381, 6408), (3528, 6141), (3738, 5796), (3864, 5607), (4094, 5292), (4347, 4984), (4361, 4968), (4508, 4806)]