21000859178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{727}}^1\times {\mathrm{20963}}^1$

素因数の和:21758

約数の個数: 32

約数和(自身を含む): 34613744256

約数和(自身を除く): 13612885078

約数列:

[1, 2, 13, 26, 53, 106, 689, 727, 1378, 1454, 9451, 18902, 20963, 38531, 41926, 77062, 272519, 500903, 545038, 1001806, 1111039, 2222078, 14443507, 15240101, 28887014, 30480202, 198121313, 396242626, 807725353, 1615450706, 10500429589, 21000859178]

約数ペア:

[(1, 21000859178), (2, 10500429589), (13, 1615450706), (26, 807725353), (53, 396242626), (106, 198121313), (689, 30480202), (727, 28887014), (1378, 15240101), (1454, 14443507), (9451, 2222078), (18902, 1111039), (20963, 1001806), (38531, 545038), (41926, 500903), (77062, 272519)]