21248670

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{2557}}^1$

素因数の和:2844

約数の個数: 32

約数和(自身を含む): 51200928

約数和(自身を除く): 29952258

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 277, 554, 831, 1385, 1662, 2557, 2770, 4155, 5114, 7671, 8310, 12785, 15342, 25570, 38355, 76710, 708289, 1416578, 2124867, 3541445, 4249734, 7082890, 10624335, 21248670]

約数ペア:

[(1, 21248670), (2, 10624335), (3, 7082890), (5, 4249734), (6, 3541445), (10, 2124867), (15, 1416578), (30, 708289), (277, 76710), (554, 38355), (831, 25570), (1385, 15342), (1662, 12785), (2557, 8310), (2770, 7671), (4155, 5114)]