19711856

素因数分解:

$2^4\times {\mathrm{307}}^1\times {\mathrm{4013}}^1$

素因数の和:4328

約数の個数: 20

約数和(自身を含む): 38325672

約数和(自身を除く): 18613816

約数列:

[1, 2, 4, 8, 16, 307, 614, 1228, 2456, 4013, 4912, 8026, 16052, 32104, 64208, 1231991, 2463982, 4927964, 9855928, 19711856]

約数ペア:

[(1, 19711856), (2, 9855928), (4, 4927964), (8, 2463982), (16, 1231991), (307, 64208), (614, 32104), (1228, 16052), (2456, 8026), (4013, 4912)]