20419216

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55487}}^1$

素因数の和:55518

約数の個数: 20

約数和(自身を含む): 41283072

約数和(自身を除く): 20863856

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55487, 110974, 221948, 443896, 887792, 1276201, 2552402, 5104804, 10209608, 20419216]

約数ペア:

[(1, 20419216), (2, 10209608), (4, 5104804), (8, 2552402), (16, 1276201), (23, 887792), (46, 443896), (92, 221948), (184, 110974), (368, 55487)]