18258867

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 32123520

約数和(自身を除く): 13864653

約数列:

[1, 3, 9, 11, 17, 19, 33, 51, 57, 99, 153, 171, 187, 209, 323, 561, 571, 627, 969, 1683, 1713, 1881, 2907, 3553, 5139, 6281, 9707, 10659, 10849, 18843, 29121, 31977, 32547, 56529, 87363, 97641, 106777, 119339, 184433, 320331, 358017, 553299, 960993, 1074051, 1659897, 2028763, 6086289, 18258867]

約数ペア:

[(1, 18258867), (3, 6086289), (9, 2028763), (11, 1659897), (17, 1074051), (19, 960993), (33, 553299), (51, 358017), (57, 320331), (99, 184433), (153, 119339), (171, 106777), (187, 97641), (209, 87363), (323, 56529), (561, 32547), (571, 31977), (627, 29121), (969, 18843), (1683, 10849), (1713, 10659), (1881, 9707), (2907, 6281), (3553, 5139)]