20619123

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1667}}^1$

素因数の和:1727

約数の個数: 32

約数和(自身を含む): 34160640

約数和(自身を除く): 13541517

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 133, 217, 399, 589, 651, 1667, 1767, 4123, 5001, 11669, 12369, 31673, 35007, 51677, 95019, 155031, 221711, 361739, 665133, 981863, 1085217, 2945589, 6873041, 20619123]

約数ペア:

[(1, 20619123), (3, 6873041), (7, 2945589), (19, 1085217), (21, 981863), (31, 665133), (57, 361739), (93, 221711), (133, 155031), (217, 95019), (399, 51677), (589, 35007), (651, 31673), (1667, 12369), (1767, 11669), (4123, 5001)]