21313370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2447}}^1$

素因数の和:2534

約数の個数: 32

約数和(自身を含む): 41948928

約数和(自身を除く): 20635558

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 335, 670, 871, 1742, 2447, 4355, 4894, 8710, 12235, 24470, 31811, 63622, 159055, 163949, 318110, 327898, 819745, 1639490, 2131337, 4262674, 10656685, 21313370]

約数ペア:

[(1, 21313370), (2, 10656685), (5, 4262674), (10, 2131337), (13, 1639490), (26, 819745), (65, 327898), (67, 318110), (130, 163949), (134, 159055), (335, 63622), (670, 31811), (871, 24470), (1742, 12235), (2447, 8710), (4355, 4894)]