21858393578

素因数分解:

$2^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{641}}^1\times {\mathrm{65831}}^1$

素因数の和:66518

約数の個数: 32

約数和(自身を含む): 38544899328

約数和(自身を除く): 16686505750

約数列:

[1, 2, 7, 14, 37, 74, 259, 518, 641, 1282, 4487, 8974, 23717, 47434, 65831, 131662, 166019, 332038, 460817, 921634, 2435747, 4871494, 17050229, 34100458, 42197671, 84395342, 295383697, 590767394, 1561313827, 3122627654, 10929196789, 21858393578]

約数ペア:

[(1, 21858393578), (2, 10929196789), (7, 3122627654), (14, 1561313827), (37, 590767394), (74, 295383697), (259, 84395342), (518, 42197671), (641, 34100458), (1282, 17050229), (4487, 4871494), (8974, 2435747), (23717, 921634), (47434, 460817), (65831, 332038), (131662, 166019)]