21320316

素因数分解:

$2^2\times 3^2\times {\mathrm{449}}^1\times {\mathrm{1319}}^1$

素因数の和:1778

約数の個数: 36

約数和(自身を含む): 54054000

約数和(自身を除く): 32733684

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 449, 898, 1319, 1347, 1796, 2638, 2694, 3957, 4041, 5276, 5388, 7914, 8082, 11871, 15828, 16164, 23742, 47484, 592231, 1184462, 1776693, 2368924, 3553386, 5330079, 7106772, 10660158, 21320316]

約数ペア:

[(1, 21320316), (2, 10660158), (3, 7106772), (4, 5330079), (6, 3553386), (9, 2368924), (12, 1776693), (18, 1184462), (36, 592231), (449, 47484), (898, 23742), (1319, 16164), (1347, 15828), (1796, 11871), (2638, 8082), (2694, 7914), (3957, 5388), (4041, 5276)]