20751857

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{4217}}^1$

素因数の和:4280

約数の個数: 16

約数和(自身を含む): 25645440

約数和(自身を除く): 4893583

約数列:

[1, 7, 19, 37, 133, 259, 703, 4217, 4921, 29519, 80123, 156029, 560861, 1092203, 2964551, 20751857]

約数ペア:

[(1, 20751857), (7, 2964551), (19, 1092203), (37, 560861), (133, 156029), (259, 80123), (703, 29519), (4217, 4921)]