72991121

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{12253}}^1$

素因数の和:12320

約数の個数: 16

約数和(自身を含む): 89405184

約数和(自身を除く): 16414063

約数列:

[1, 7, 23, 37, 161, 259, 851, 5957, 12253, 85771, 281819, 453361, 1972733, 3173527, 10427303, 72991121]

約数ペア:

[(1, 72991121), (7, 10427303), (23, 3173527), (37, 1972733), (161, 453361), (259, 281819), (851, 85771), (5957, 12253)]