15681841

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1$

素因数の和:444

約数の個数: 16

約数和(自身を含む): 18385920

約数和(自身を除く): 2704079

約数列:

[1, 7, 71, 139, 227, 497, 973, 1589, 9869, 16117, 31553, 69083, 112819, 220871, 2240263, 15681841]

約数ペア:

[(1, 15681841), (7, 2240263), (71, 220871), (139, 112819), (227, 69083), (497, 31553), (973, 16117), (1589, 9869)]