20665635

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1229}}^1$

素因数の和:1315

約数の個数: 32

約数和(自身を含む): 35424000

約数和(自身を除く): 14758365

約数列:

[1, 3, 5, 15, 19, 57, 59, 95, 177, 285, 295, 885, 1121, 1229, 3363, 3687, 5605, 6145, 16815, 18435, 23351, 70053, 72511, 116755, 217533, 350265, 362555, 1087665, 1377709, 4133127, 6888545, 20665635]

約数ペア:

[(1, 20665635), (3, 6888545), (5, 4133127), (15, 1377709), (19, 1087665), (57, 362555), (59, 350265), (95, 217533), (177, 116755), (285, 72511), (295, 70053), (885, 23351), (1121, 18435), (1229, 16815), (3363, 6145), (3687, 5605)]