81922841

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{367}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 110788608

約数和(自身を除く): 28865767

約数列:

[1, 7, 11, 13, 77, 91, 143, 223, 367, 1001, 1561, 2453, 2569, 2899, 4037, 4771, 17171, 20293, 28259, 31889, 33397, 52481, 81841, 223223, 367367, 572887, 900251, 1063933, 6301757, 7447531, 11703263, 81922841]

約数ペア:

[(1, 81922841), (7, 11703263), (11, 7447531), (13, 6301757), (77, 1063933), (91, 900251), (143, 572887), (223, 367367), (367, 223223), (1001, 81841), (1561, 52481), (2453, 33397), (2569, 31889), (2899, 28259), (4037, 20293), (4771, 17171)]