20137815

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{2617}}^1$

素因数の和:2653

約数の個数: 40

約数和(自身を含む): 38013360

約数和(自身を除く): 17875545

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 285, 405, 513, 855, 1539, 2565, 2617, 7695, 7851, 13085, 23553, 39255, 49723, 70659, 117765, 149169, 211977, 248615, 353295, 447507, 745845, 1059885, 1342521, 2237535, 4027563, 6712605, 20137815]

約数ペア:

[(1, 20137815), (3, 6712605), (5, 4027563), (9, 2237535), (15, 1342521), (19, 1059885), (27, 745845), (45, 447507), (57, 353295), (81, 248615), (95, 211977), (135, 149169), (171, 117765), (285, 70659), (405, 49723), (513, 39255), (855, 23553), (1539, 13085), (2565, 7851), (2617, 7695)]