21859994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{137}}^1$

素因数の和:207

約数の個数: 48

約数和(自身を含む): 39748968

約数和(自身を除く): 17888974

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 137, 221, 247, 274, 323, 361, 442, 494, 646, 722, 1781, 2329, 2603, 3562, 4199, 4658, 4693, 5206, 6137, 8398, 9386, 12274, 30277, 33839, 44251, 49457, 60554, 67678, 79781, 88502, 98914, 159562, 575263, 642941, 840769, 1150526, 1285882, 1681538, 10929997, 21859994]

約数ペア:

[(1, 21859994), (2, 10929997), (13, 1681538), (17, 1285882), (19, 1150526), (26, 840769), (34, 642941), (38, 575263), (137, 159562), (221, 98914), (247, 88502), (274, 79781), (323, 67678), (361, 60554), (442, 49457), (494, 44251), (646, 33839), (722, 30277), (1781, 12274), (2329, 9386), (2603, 8398), (3562, 6137), (4199, 5206), (4658, 4693)]