15881265

素因数分解:

$3^6\times 5^1\times {\mathrm{4357}}^1$

素因数の和:4380

約数の個数: 28

約数和(自身を含む): 28579764

約数和(自身を除く): 12698499

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 4357, 13071, 21785, 39213, 65355, 117639, 196065, 352917, 588195, 1058751, 1764585, 3176253, 5293755, 15881265]

約数ペア:

[(1, 15881265), (3, 5293755), (5, 3176253), (9, 1764585), (15, 1058751), (27, 588195), (45, 352917), (81, 196065), (135, 117639), (243, 65355), (405, 39213), (729, 21785), (1215, 13071), (3645, 4357)]