21945945

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4447}}^1$

素因数の和:4509

約数の個数: 32

約数和(自身を含む): 40992768

約数和(自身を除く): 19046823

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4447, 4935, 13341, 22235, 31129, 66705, 93387, 155645, 209009, 466935, 627027, 1045045, 1463063, 3135135, 4389189, 7315315, 21945945]

約数ペア:

[(1, 21945945), (3, 7315315), (5, 4389189), (7, 3135135), (15, 1463063), (21, 1045045), (35, 627027), (47, 466935), (105, 209009), (141, 155645), (235, 93387), (329, 66705), (705, 31129), (987, 22235), (1645, 13341), (4447, 4935)]