21322522

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2539}}^1$

素因数の和:2590

約数の個数: 32

約数和(自身を含む): 38404800

約数和(自身を除く): 17082278

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 221, 247, 323, 442, 494, 646, 2539, 4199, 5078, 8398, 33007, 43163, 48241, 66014, 86326, 96482, 561119, 627133, 820097, 1122238, 1254266, 1640194, 10661261, 21322522]

約数ペア:

[(1, 21322522), (2, 10661261), (13, 1640194), (17, 1254266), (19, 1122238), (26, 820097), (34, 627133), (38, 561119), (221, 96482), (247, 86326), (323, 66014), (442, 48241), (494, 43163), (646, 33007), (2539, 8398), (4199, 5078)]