21322860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27337}}^1$

素因数の和:27362

約数の個数: 48

約数和(自身を含む): 64298976

約数和(自身を除く): 42976116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27337, 54674, 82011, 109348, 136685, 164022, 273370, 328044, 355381, 410055, 546740, 710762, 820110, 1066143, 1421524, 1640220, 1776905, 2132286, 3553810, 4264572, 5330715, 7107620, 10661430, 21322860]

約数ペア:

[(1, 21322860), (2, 10661430), (3, 7107620), (4, 5330715), (5, 4264572), (6, 3553810), (10, 2132286), (12, 1776905), (13, 1640220), (15, 1421524), (20, 1066143), (26, 820110), (30, 710762), (39, 546740), (52, 410055), (60, 355381), (65, 328044), (78, 273370), (130, 164022), (156, 136685), (195, 109348), (260, 82011), (390, 54674), (780, 27337)]