20121131303

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{146141}}^1$

素因数の和:146267

約数の個数: 32

約数和(自身を含む): 26516004480

約数和(自身を除く): 6394873177

約数列:

[1, 7, 13, 17, 89, 91, 119, 221, 623, 1157, 1513, 1547, 8099, 10591, 19669, 137683, 146141, 1022987, 1899833, 2484397, 13006549, 13298831, 17390779, 32297161, 91045843, 169085137, 221111333, 226080127, 1183595959, 1547779331, 2874447329, 20121131303]

約数ペア:

[(1, 20121131303), (7, 2874447329), (13, 1547779331), (17, 1183595959), (89, 226080127), (91, 221111333), (119, 169085137), (221, 91045843), (623, 32297161), (1157, 17390779), (1513, 13298831), (1547, 13006549), (8099, 2484397), (10591, 1899833), (19669, 1022987), (137683, 146141)]