1220402813

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{89087}}^1$

素因数の和:89216

約数の個数: 16

約数和(自身を含む): 1482424320

約数和(自身を除く): 262021507

約数列:

[1, 7, 19, 103, 133, 721, 1957, 13699, 89087, 623609, 1692653, 9175961, 11848571, 64231727, 174343259, 1220402813]

約数ペア:

[(1, 1220402813), (7, 174343259), (19, 64231727), (103, 11848571), (133, 9175961), (721, 1692653), (1957, 623609), (13699, 89087)]