21335830

素因数分解:

$2^1\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7873}}^1$

素因数の和:8151

約数の個数: 16

約数和(自身を含む): 38551104

約数和(自身を除く): 17215274

約数列:

[1, 2, 5, 10, 271, 542, 1355, 2710, 7873, 15746, 39365, 78730, 2133583, 4267166, 10667915, 21335830]

約数ペア:

[(1, 21335830), (2, 10667915), (5, 4267166), (10, 2133583), (271, 78730), (542, 39365), (1355, 15746), (2710, 7873)]