420252867

素因数分解:

$3^4\times {\mathrm{659}}^1\times {\mathrm{7873}}^1$

素因数の和:8544

約数の個数: 20

約数和(自身を含む): 628817640

約数和(自身を除く): 208564773

約数列:

[1, 3, 9, 27, 81, 659, 1977, 5931, 7873, 17793, 23619, 53379, 70857, 212571, 637713, 5188307, 15564921, 46694763, 140084289, 420252867]

約数ペア:

[(1, 420252867), (3, 140084289), (9, 46694763), (27, 15564921), (81, 5188307), (659, 637713), (1977, 212571), (5931, 70857), (7873, 53379), (17793, 23619)]