31383807

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 53406720

約数和(自身を除く): 22022913

約数列:

[1, 3, 7, 13, 21, 37, 39, 91, 111, 169, 239, 259, 273, 481, 507, 717, 777, 1183, 1443, 1673, 3107, 3367, 3549, 5019, 6253, 8843, 9321, 10101, 18759, 21749, 26529, 40391, 43771, 61901, 65247, 114959, 121173, 131313, 185703, 282737, 344877, 804713, 848211, 1494467, 2414139, 4483401, 10461269, 31383807]

約数ペア:

[(1, 31383807), (3, 10461269), (7, 4483401), (13, 2414139), (21, 1494467), (37, 848211), (39, 804713), (91, 344877), (111, 282737), (169, 185703), (239, 131313), (259, 121173), (273, 114959), (481, 65247), (507, 61901), (717, 43771), (777, 40391), (1183, 26529), (1443, 21749), (1673, 18759), (3107, 10101), (3367, 9321), (3549, 8843), (5019, 6253)]