20286253

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:373

約数の個数: 24

約数和(自身を含む): 24349248

約数和(自身を除く): 4062995

約数列:

[1, 13, 17, 23, 169, 221, 299, 307, 391, 2873, 3887, 3991, 5083, 5219, 7061, 51883, 66079, 67847, 91793, 120037, 882011, 1193309, 1560481, 20286253]

約数ペア:

[(1, 20286253), (13, 1560481), (17, 1193309), (23, 882011), (169, 120037), (221, 91793), (299, 67847), (307, 66079), (391, 51883), (2873, 7061), (3887, 5219), (3991, 5083)]