315721

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1$

素因数の和:120

約数の個数: 16

約数和(自身を含む): 393984

約数和(自身を除く): 78263

約数列:

[1, 7, 23, 37, 53, 161, 259, 371, 851, 1219, 1961, 5957, 8533, 13727, 45103, 315721]

約数ペア:

[(1, 315721), (7, 45103), (23, 13727), (37, 8533), (53, 5957), (161, 1961), (259, 1219), (371, 851)]