20342897379

素因数分解:

$3^2\times 7^2\times {\mathrm{1087}}^1\times {\mathrm{42437}}^1$

素因数の和:43544

約数の個数: 36

約数和(自身を含む): 34213855104

約数和(自身を除く): 13870957725

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 1087, 3261, 7609, 9783, 22827, 42437, 53263, 68481, 127311, 159789, 297059, 381933, 479367, 891177, 2079413, 2673531, 6238239, 18714717, 46129019, 138387057, 322903133, 415161171, 968709399, 2260321931, 2906128197, 6780965793, 20342897379]

約数ペア:

[(1, 20342897379), (3, 6780965793), (7, 2906128197), (9, 2260321931), (21, 968709399), (49, 415161171), (63, 322903133), (147, 138387057), (441, 46129019), (1087, 18714717), (3261, 6238239), (7609, 2673531), (9783, 2079413), (22827, 891177), (42437, 479367), (53263, 381933), (68481, 297059), (127311, 159789)]