15663915

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4001}}^1$

素因数の和:4044

約数の個数: 32

約数和(自身を含む): 28814400

約数和(自身を除く): 13150485

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 87, 135, 145, 261, 435, 783, 1305, 3915, 4001, 12003, 20005, 36009, 60015, 108027, 116029, 180045, 348087, 540135, 580145, 1044261, 1740435, 3132783, 5221305, 15663915]

約数ペア:

[(1, 15663915), (3, 5221305), (5, 3132783), (9, 1740435), (15, 1044261), (27, 580145), (29, 540135), (45, 348087), (87, 180045), (135, 116029), (145, 108027), (261, 60015), (435, 36009), (783, 20005), (1305, 12003), (3915, 4001)]