20870115

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4229}}^1$

素因数の和:4291

約数の個数: 32

約数和(自身を含む): 38983680

約数和(自身を除く): 18113565

約数列:

[1, 3, 5, 7, 15, 21, 35, 47, 105, 141, 235, 329, 705, 987, 1645, 4229, 4935, 12687, 21145, 29603, 63435, 88809, 148015, 198763, 444045, 596289, 993815, 1391341, 2981445, 4174023, 6956705, 20870115]

約数ペア:

[(1, 20870115), (3, 6956705), (5, 4174023), (7, 2981445), (15, 1391341), (21, 993815), (35, 596289), (47, 444045), (105, 198763), (141, 148015), (235, 88809), (329, 63435), (705, 29603), (987, 21145), (1645, 12687), (4229, 4935)]