163957209

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{331}}^1\times {\mathrm{977}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 237677472

約数和(自身を除く): 73720263

約数列:

[1, 3, 13, 39, 169, 331, 507, 977, 993, 2931, 4303, 12701, 12909, 38103, 55939, 165113, 167817, 323387, 495339, 970161, 4204031, 12612093, 54652403, 163957209]

約数ペア:

[(1, 163957209), (3, 54652403), (13, 12612093), (39, 4204031), (169, 970161), (331, 495339), (507, 323387), (977, 167817), (993, 165113), (2931, 55939), (4303, 38103), (12701, 12909)]