21274816

素因数分解:

$2^6\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{149}}^1$

素因数の和:281

約数の個数: 56

約数和(自身を含む): 44805600

約数和(自身を除く): 23530784

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 97, 149, 184, 194, 298, 368, 388, 596, 736, 776, 1192, 1472, 1552, 2231, 2384, 3104, 3427, 4462, 4768, 6208, 6854, 8924, 9536, 13708, 14453, 17848, 27416, 28906, 35696, 54832, 57812, 71392, 109664, 115624, 142784, 219328, 231248, 332419, 462496, 664838, 924992, 1329676, 2659352, 5318704, 10637408, 21274816]

約数ペア:

[(1, 21274816), (2, 10637408), (4, 5318704), (8, 2659352), (16, 1329676), (23, 924992), (32, 664838), (46, 462496), (64, 332419), (92, 231248), (97, 219328), (149, 142784), (184, 115624), (194, 109664), (298, 71392), (368, 57812), (388, 54832), (596, 35696), (736, 28906), (776, 27416), (1192, 17848), (1472, 14453), (1552, 13708), (2231, 9536), (2384, 8924), (3104, 6854), (3427, 6208), (4462, 4768)]