19742031

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 29469440

約数和(自身を除く): 9727409

約数列:

[1, 3, 9, 43, 129, 139, 367, 387, 417, 1101, 1251, 3303, 5977, 15781, 17931, 47343, 51013, 53793, 142029, 153039, 459117, 2193559, 6580677, 19742031]

約数ペア:

[(1, 19742031), (3, 6580677), (9, 2193559), (43, 459117), (129, 153039), (139, 142029), (367, 53793), (387, 51013), (417, 47343), (1101, 17931), (1251, 15781), (3303, 5977)]