19445985

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2557}}^1$

素因数の和:2594

約数の個数: 36

約数和(自身を含む): 36512892

約数和(自身を除く): 17066907

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 169, 195, 507, 585, 845, 1521, 2535, 2557, 7605, 7671, 12785, 23013, 33241, 38355, 99723, 115065, 166205, 299169, 432133, 498615, 1296399, 1495845, 2160665, 3889197, 6481995, 19445985]

約数ペア:

[(1, 19445985), (3, 6481995), (5, 3889197), (9, 2160665), (13, 1495845), (15, 1296399), (39, 498615), (45, 432133), (65, 299169), (117, 166205), (169, 115065), (195, 99723), (507, 38355), (585, 33241), (845, 23013), (1521, 12785), (2535, 7671), (2557, 7605)]