39872007

素因数分解:

$3^4\times 7^1\times {\mathrm{70321}}^1$

素因数の和:70340

約数の個数: 20

約数和(自身を含む): 68071696

約数和(自身を除く): 28199689

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 70321, 210963, 492247, 632889, 1476741, 1898667, 4430223, 5696001, 13290669, 39872007]

約数ペア:

[(1, 39872007), (3, 13290669), (7, 5696001), (9, 4430223), (21, 1898667), (27, 1476741), (63, 632889), (81, 492247), (189, 210963), (567, 70321)]