15253721

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{257}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 17915520

約数和(自身を除く): 2661799

約数列:

[1, 7, 61, 139, 257, 427, 973, 1799, 8479, 15677, 35723, 59353, 109739, 250061, 2179103, 15253721]

約数ペア:

[(1, 15253721), (7, 2179103), (61, 250061), (139, 109739), (257, 59353), (427, 35723), (973, 15677), (1799, 8479)]