20682416

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{21191}}^1$

素因数の和:21260

約数の個数: 20

約数和(自身を含む): 40731024

約数和(自身を除く): 20048608

約数列:

[1, 2, 4, 8, 16, 61, 122, 244, 488, 976, 21191, 42382, 84764, 169528, 339056, 1292651, 2585302, 5170604, 10341208, 20682416]

約数ペア:

[(1, 20682416), (2, 10341208), (4, 5170604), (8, 2585302), (16, 1292651), (61, 339056), (122, 169528), (244, 84764), (488, 42382), (976, 21191)]