19155591

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1231}}^1$

素因数の和:1276

約数の個数: 48

約数和(自身を含む): 35875840

約数和(自身を除く): 16720249

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1231, 1729, 2223, 3693, 5187, 8617, 11079, 15561, 16003, 23389, 25851, 48009, 70167, 77553, 112021, 144027, 163723, 210501, 304057, 336063, 491169, 912171, 1008189, 1473507, 2128399, 2736513, 6385197, 19155591]

約数ペア:

[(1, 19155591), (3, 6385197), (7, 2736513), (9, 2128399), (13, 1473507), (19, 1008189), (21, 912171), (39, 491169), (57, 336063), (63, 304057), (91, 210501), (117, 163723), (133, 144027), (171, 112021), (247, 77553), (273, 70167), (399, 48009), (741, 25851), (819, 23389), (1197, 16003), (1231, 15561), (1729, 11079), (2223, 8617), (3693, 5187)]