15881481

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{7639}}^1$

素因数の和:7666

約数の個数: 32

約数和(自身を含む): 29337600

約数和(自身を除く): 13456119

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 7639, 22917, 53473, 68751, 84029, 160419, 206253, 252087, 481257, 588203, 756261, 1443771, 1764609, 2268783, 5293827, 15881481]

約数ペア:

[(1, 15881481), (3, 5293827), (7, 2268783), (9, 1764609), (11, 1443771), (21, 756261), (27, 588203), (33, 481257), (63, 252087), (77, 206253), (99, 160419), (189, 84029), (231, 68751), (297, 53473), (693, 22917), (2079, 7639)]