18518985

素因数分解:

$3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2089}}^1$

素因数の和:2297

約数の個数: 24

約数和(自身を含む): 32277960

約数和(自身を除く): 13758975

約数列:

[1, 3, 5, 9, 15, 45, 197, 591, 985, 1773, 2089, 2955, 6267, 8865, 10445, 18801, 31335, 94005, 411533, 1234599, 2057665, 3703797, 6172995, 18518985]

約数ペア:

[(1, 18518985), (3, 6172995), (5, 3703797), (9, 2057665), (15, 1234599), (45, 411533), (197, 94005), (591, 31335), (985, 18801), (1773, 10445), (2089, 8865), (2955, 6267)]