17855649

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2170

約数の個数: 36

約数和(自身を含む): 31596240

約数和(自身を除く): 13740591

約数列:

[1, 3, 7, 9, 19, 21, 49, 57, 63, 133, 147, 171, 399, 441, 931, 1197, 2131, 2793, 6393, 8379, 14917, 19179, 40489, 44751, 104419, 121467, 134253, 283423, 313257, 364401, 850269, 939771, 1983961, 2550807, 5951883, 17855649]

約数ペア:

[(1, 17855649), (3, 5951883), (7, 2550807), (9, 1983961), (19, 939771), (21, 850269), (49, 364401), (57, 313257), (63, 283423), (133, 134253), (147, 121467), (171, 104419), (399, 44751), (441, 40489), (931, 19179), (1197, 14917), (2131, 8379), (2793, 6393)]