21344876

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{12497}}^1$

素因数の和:12569

約数の個数: 24

約数和(自身を含む): 43393056

約数和(自身を除く): 22048180

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 12497, 24994, 49988, 87479, 174958, 349916, 762317, 1524634, 3049268, 5336219, 10672438, 21344876]

約数ペア:

[(1, 21344876), (2, 10672438), (4, 5336219), (7, 3049268), (14, 1524634), (28, 762317), (61, 349916), (122, 174958), (244, 87479), (427, 49988), (854, 24994), (1708, 12497)]