222581359

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{971}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 300464640

約数和(自身を除く): 77883281

約数列:

[1, 7, 11, 13, 77, 91, 143, 229, 971, 1001, 1603, 2519, 2977, 6797, 10681, 12623, 17633, 20839, 32747, 74767, 88361, 138853, 222359, 229229, 971971, 1556513, 2445949, 2890667, 17121643, 20234669, 31797337, 222581359]

約数ペア:

[(1, 222581359), (7, 31797337), (11, 20234669), (13, 17121643), (77, 2890667), (91, 2445949), (143, 1556513), (229, 971971), (971, 229229), (1001, 222359), (1603, 138853), (2519, 88361), (2977, 74767), (6797, 32747), (10681, 20839), (12623, 17633)]