21147984

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1$

素因数の和:130

約数の個数: 180

約数和(自身を含む): 70799040

約数和(自身を除く): 49651056

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 13, 16, 18, 22, 24, 26, 33, 36, 39, 44, 48, 52, 66, 72, 78, 79, 88, 99, 104, 117, 132, 143, 144, 156, 158, 169, 176, 198, 208, 234, 237, 264, 286, 312, 316, 338, 396, 429, 468, 474, 507, 528, 572, 624, 632, 676, 711, 792, 858, 869, 936, 948, 1014, 1027, 1144, 1264, 1287, 1352, 1422, 1521, 1584, 1716, 1738, 1859, 1872, 1896, 2028, 2054, 2288, 2574, 2607, 2704, 2844, 3042, 3081, 3432, 3476, 3718, 3792, 4056, 4108, 5148, 5214, 5577, 5688, 6084, 6162, 6864, 6952, 7436, 7821, 8112, 8216, 9243, 10296, 10428, 11154, 11297, 11376, 12168, 12324, 13351, 13904, 14872, 15642, 16432, 16731, 18486, 20592, 20856, 22308, 22594, 24336, 24648, 26702, 29744, 31284, 33462, 33891, 36972, 40053, 41712, 44616, 45188, 49296, 53404, 62568, 66924, 67782, 73944, 80106, 89232, 90376, 101673, 106808, 120159, 125136, 133848, 135564, 146861, 147888, 160212, 180752, 203346, 213616, 240318, 267696, 271128, 293722, 320424, 406692, 440583, 480636, 542256, 587444, 640848, 813384, 881166, 961272, 1174888, 1321749, 1626768, 1762332, 1922544, 2349776, 2643498, 3524664, 5286996, 7049328, 10573992, 21147984]

約数ペア:

[(1, 21147984), (2, 10573992), (3, 7049328), (4, 5286996), (6, 3524664), (8, 2643498), (9, 2349776), (11, 1922544), (12, 1762332), (13, 1626768), (16, 1321749), (18, 1174888), (22, 961272), (24, 881166), (26, 813384), (33, 640848), (36, 587444), (39, 542256), (44, 480636), (48, 440583), (52, 406692), (66, 320424), (72, 293722), (78, 271128), (79, 267696), (88, 240318), (99, 213616), (104, 203346), (117, 180752), (132, 160212), (143, 147888), (144, 146861), (156, 135564), (158, 133848), (169, 125136), (176, 120159), (198, 106808), (208, 101673), (234, 90376), (237, 89232), (264, 80106), (286, 73944), (312, 67782), (316, 66924), (338, 62568), (396, 53404), (429, 49296), (468, 45188), (474, 44616), (507, 41712), (528, 40053), (572, 36972), (624, 33891), (632, 33462), (676, 31284), (711, 29744), (792, 26702), (858, 24648), (869, 24336), (936, 22594), (948, 22308), (1014, 20856), (1027, 20592), (1144, 18486), (1264, 16731), (1287, 16432), (1352, 15642), (1422, 14872), (1521, 13904), (1584, 13351), (1716, 12324), (1738, 12168), (1859, 11376), (1872, 11297), (1896, 11154), (2028, 10428), (2054, 10296), (2288, 9243), (2574, 8216), (2607, 8112), (2704, 7821), (2844, 7436), (3042, 6952), (3081, 6864), (3432, 6162), (3476, 6084), (3718, 5688), (3792, 5577), (4056, 5214), (4108, 5148)]