21000591352

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{503563}}^1$

素因数の和:503983

約数の個数: 32

約数和(自身を含む): 42510872880

約数和(自身を除く): 21510281528

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 401, 802, 1604, 3208, 5213, 10426, 20852, 41704, 503563, 1007126, 2014252, 4028504, 6546319, 13092638, 26185276, 52370552, 201928763, 403857526, 807715052, 1615430104, 2625073919, 5250147838, 10500295676, 21000591352]

約数ペア:

[(1, 21000591352), (2, 10500295676), (4, 5250147838), (8, 2625073919), (13, 1615430104), (26, 807715052), (52, 403857526), (104, 201928763), (401, 52370552), (802, 26185276), (1604, 13092638), (3208, 6546319), (5213, 4028504), (10426, 2014252), (20852, 1007126), (41704, 503563)]