21563172

素因数分解:

$2^2\times 3^4\times {\mathrm{66553}}^1$

素因数の和:66569

約数の個数: 30

約数和(自身を含む): 56371238

約数和(自身を除く): 34808066

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 66553, 133106, 199659, 266212, 399318, 598977, 798636, 1197954, 1796931, 2395908, 3593862, 5390793, 7187724, 10781586, 21563172]

約数ペア:

[(1, 21563172), (2, 10781586), (3, 7187724), (4, 5390793), (6, 3593862), (9, 2395908), (12, 1796931), (18, 1197954), (27, 798636), (36, 598977), (54, 399318), (81, 266212), (108, 199659), (162, 133106), (324, 66553)]