21887024

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1293

約数の個数: 40

約数和(自身を含む): 45608688

約数和(自身を除く): 23721664

約数列:

[1, 2, 4, 8, 16, 17, 34, 67, 68, 134, 136, 268, 272, 536, 1072, 1139, 1201, 2278, 2402, 4556, 4804, 9112, 9608, 18224, 19216, 20417, 40834, 80467, 81668, 160934, 163336, 321868, 326672, 643736, 1287472, 1367939, 2735878, 5471756, 10943512, 21887024]

約数ペア:

[(1, 21887024), (2, 10943512), (4, 5471756), (8, 2735878), (16, 1367939), (17, 1287472), (34, 643736), (67, 326672), (68, 321868), (134, 163336), (136, 160934), (268, 81668), (272, 80467), (536, 40834), (1072, 20417), (1139, 19216), (1201, 18224), (2278, 9608), (2402, 9112), (4556, 4804)]