21165950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32563}}^1$

素因数の和:32588

約数の個数: 24

約数和(自身を含む): 42398328

約数和(自身を除く): 21232378

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32563, 65126, 162815, 325630, 423319, 814075, 846638, 1628150, 2116595, 4233190, 10582975, 21165950]

約数ペア:

[(1, 21165950), (2, 10582975), (5, 4233190), (10, 2116595), (13, 1628150), (25, 846638), (26, 814075), (50, 423319), (65, 325630), (130, 162815), (325, 65126), (650, 32563)]