25170831

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:553

約数の個数: 40

約数和(自身を含む): 43490304

約数和(自身を除く): 18319473

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 431, 567, 721, 927, 1293, 2163, 2781, 3017, 3879, 6489, 8343, 9051, 11637, 19467, 27153, 34911, 44393, 58401, 81459, 133179, 244377, 310751, 399537, 932253, 1198611, 2796759, 3595833, 8390277, 25170831]

約数ペア:

[(1, 25170831), (3, 8390277), (7, 3595833), (9, 2796759), (21, 1198611), (27, 932253), (63, 399537), (81, 310751), (103, 244377), (189, 133179), (309, 81459), (431, 58401), (567, 44393), (721, 34911), (927, 27153), (1293, 19467), (2163, 11637), (2781, 9051), (3017, 8343), (3879, 6489)]