21985367045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1\times {\mathrm{56809}}^1$

素因数の和:57017

約数の個数: 32

約数和(自身を含む): 29082175200

約数和(自身を除く): 7096808155

約数列:

[1, 5, 17, 29, 85, 145, 157, 493, 785, 2465, 2669, 4553, 13345, 22765, 56809, 77401, 284045, 387005, 965753, 1647461, 4828765, 8237305, 8919013, 28006837, 44595065, 140034185, 151623221, 258651377, 758116105, 1293256885, 4397073409, 21985367045]

約数ペア:

[(1, 21985367045), (5, 4397073409), (17, 1293256885), (29, 758116105), (85, 258651377), (145, 151623221), (157, 140034185), (493, 44595065), (785, 28006837), (2465, 8919013), (2669, 8237305), (4553, 4828765), (13345, 1647461), (22765, 965753), (56809, 387005), (77401, 284045)]