19720629

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{2113}}^1$

素因数の和:2197

約数の個数: 24

約数和(自身を含む): 30669912

約数和(自身を除く): 10949283

約数列:

[1, 3, 9, 17, 51, 61, 153, 183, 549, 1037, 2113, 3111, 6339, 9333, 19017, 35921, 107763, 128893, 323289, 386679, 1160037, 2191181, 6573543, 19720629]

約数ペア:

[(1, 19720629), (3, 6573543), (9, 2191181), (17, 1160037), (51, 386679), (61, 323289), (153, 128893), (183, 107763), (549, 35921), (1037, 19017), (2113, 9333), (3111, 6339)]