19749303

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2357}}^1$

素因数の和:2396

約数の個数: 36

約数和(自身を含む): 34945560

約数和(自身を除く): 15196257

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2357, 2793, 7071, 8379, 16499, 21213, 44783, 49497, 115493, 134349, 148491, 313481, 346479, 403047, 940443, 1039437, 2194367, 2821329, 6583101, 19749303]

約数ペア:

[(1, 19749303), (3, 6583101), (7, 2821329), (9, 2194367), (19, 1039437), (21, 940443), (49, 403047), (57, 346479), (63, 313481), (133, 148491), (147, 134349), (171, 115493), (399, 49497), (441, 44783), (931, 21213), (1197, 16499), (2357, 8379), (2793, 7071)]