21413088

素因数分解:

$2^5\times 3^2\times {\mathrm{149}}^1\times {\mathrm{499}}^1$

素因数の和:664

約数の個数: 72

約数和(自身を含む): 61425000

約数和(自身を除く): 40011912

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 149, 288, 298, 447, 499, 596, 894, 998, 1192, 1341, 1497, 1788, 1996, 2384, 2682, 2994, 3576, 3992, 4491, 4768, 5364, 5988, 7152, 7984, 8982, 10728, 11976, 14304, 15968, 17964, 21456, 23952, 35928, 42912, 47904, 71856, 74351, 143712, 148702, 223053, 297404, 446106, 594808, 669159, 892212, 1189616, 1338318, 1784424, 2379232, 2676636, 3568848, 5353272, 7137696, 10706544, 21413088]

約数ペア:

[(1, 21413088), (2, 10706544), (3, 7137696), (4, 5353272), (6, 3568848), (8, 2676636), (9, 2379232), (12, 1784424), (16, 1338318), (18, 1189616), (24, 892212), (32, 669159), (36, 594808), (48, 446106), (72, 297404), (96, 223053), (144, 148702), (149, 143712), (288, 74351), (298, 71856), (447, 47904), (499, 42912), (596, 35928), (894, 23952), (998, 21456), (1192, 17964), (1341, 15968), (1497, 14304), (1788, 11976), (1996, 10728), (2384, 8982), (2682, 7984), (2994, 7152), (3576, 5988), (3992, 5364), (4491, 4768)]