21538710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{26591}}^1$

素因数の和:26610

約数の個数: 40

約数和(自身を含む): 57917376

約数和(自身を除く): 36378666

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 26591, 53182, 79773, 132955, 159546, 239319, 265910, 398865, 478638, 717957, 797730, 1196595, 1435914, 2153871, 2393190, 3589785, 4307742, 7179570, 10769355, 21538710]

約数ペア:

[(1, 21538710), (2, 10769355), (3, 7179570), (5, 4307742), (6, 3589785), (9, 2393190), (10, 2153871), (15, 1435914), (18, 1196595), (27, 797730), (30, 717957), (45, 478638), (54, 398865), (81, 265910), (90, 239319), (135, 159546), (162, 132955), (270, 79773), (405, 53182), (810, 26591)]