39505921

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{313}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 52048640

約数和(自身を除く): 12542719

約数列:

[1, 7, 13, 19, 73, 91, 133, 247, 313, 511, 949, 1387, 1729, 2191, 4069, 5947, 6643, 9709, 18031, 22849, 28483, 41629, 77311, 126217, 159943, 297037, 434131, 541177, 2079259, 3038917, 5643703, 39505921]

約数ペア:

[(1, 39505921), (7, 5643703), (13, 3038917), (19, 2079259), (73, 541177), (91, 434131), (133, 297037), (247, 159943), (313, 126217), (511, 77311), (949, 41629), (1387, 28483), (1729, 22849), (2191, 18031), (4069, 9709), (5947, 6643)]