21621168

素因数分解:

$2^4\times 3^5\times {\mathrm{67}}^1\times {\mathrm{83}}^1$

素因数の和:173

約数の個数: 120

約数和(自身を含む): 64454208

約数和(自身を除く): 42833040

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 67, 72, 81, 83, 108, 134, 144, 162, 166, 201, 216, 243, 249, 268, 324, 332, 402, 432, 486, 498, 536, 603, 648, 664, 747, 804, 972, 996, 1072, 1206, 1296, 1328, 1494, 1608, 1809, 1944, 1992, 2241, 2412, 2988, 3216, 3618, 3888, 3984, 4482, 4824, 5427, 5561, 5976, 6723, 7236, 8964, 9648, 10854, 11122, 11952, 13446, 14472, 16281, 16683, 17928, 20169, 21708, 22244, 26892, 28944, 32562, 33366, 35856, 40338, 43416, 44488, 50049, 53784, 65124, 66732, 80676, 86832, 88976, 100098, 107568, 130248, 133464, 150147, 161352, 200196, 260496, 266928, 300294, 322704, 400392, 450441, 600588, 800784, 900882, 1201176, 1351323, 1801764, 2402352, 2702646, 3603528, 5405292, 7207056, 10810584, 21621168]

約数ペア:

[(1, 21621168), (2, 10810584), (3, 7207056), (4, 5405292), (6, 3603528), (8, 2702646), (9, 2402352), (12, 1801764), (16, 1351323), (18, 1201176), (24, 900882), (27, 800784), (36, 600588), (48, 450441), (54, 400392), (67, 322704), (72, 300294), (81, 266928), (83, 260496), (108, 200196), (134, 161352), (144, 150147), (162, 133464), (166, 130248), (201, 107568), (216, 100098), (243, 88976), (249, 86832), (268, 80676), (324, 66732), (332, 65124), (402, 53784), (432, 50049), (486, 44488), (498, 43416), (536, 40338), (603, 35856), (648, 33366), (664, 32562), (747, 28944), (804, 26892), (972, 22244), (996, 21708), (1072, 20169), (1206, 17928), (1296, 16683), (1328, 16281), (1494, 14472), (1608, 13446), (1809, 11952), (1944, 11122), (1992, 10854), (2241, 9648), (2412, 8964), (2988, 7236), (3216, 6723), (3618, 5976), (3888, 5561), (3984, 5427), (4482, 4824)]