18700065

素因数分解:

$3^5\times 5^1\times {\mathrm{15391}}^1$

素因数の和:15411

約数の個数: 24

約数和(自身を含む): 33616128

約数和(自身を除く): 14916063

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15391, 46173, 76955, 138519, 230865, 415557, 692595, 1246671, 2077785, 3740013, 6233355, 18700065]

約数ペア:

[(1, 18700065), (3, 6233355), (5, 3740013), (9, 2077785), (15, 1246671), (27, 692595), (45, 415557), (81, 230865), (135, 138519), (243, 76955), (405, 46173), (1215, 15391)]