20210704

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30809}}^1$

素因数の和:30858

約数の個数: 20

約数和(自身を含む): 40114620

約数和(自身を除く): 19903916

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30809, 61618, 123236, 246472, 492944, 1263169, 2526338, 5052676, 10105352, 20210704]

約数ペア:

[(1, 20210704), (2, 10105352), (4, 5052676), (8, 2526338), (16, 1263169), (41, 492944), (82, 246472), (164, 123236), (328, 61618), (656, 30809)]