15987531

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2403

約数の個数: 32

約数和(自身を含む): 27164160

約数和(自身を除く): 11176629

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 119, 133, 323, 357, 399, 969, 2261, 2357, 6783, 7071, 16499, 40069, 44783, 49497, 120207, 134349, 280483, 313481, 761311, 841449, 940443, 2283933, 5329177, 15987531]

約数ペア:

[(1, 15987531), (3, 5329177), (7, 2283933), (17, 940443), (19, 841449), (21, 761311), (51, 313481), (57, 280483), (119, 134349), (133, 120207), (323, 49497), (357, 44783), (399, 40069), (969, 16499), (2261, 7071), (2357, 6783)]