21812479

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{431}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 25038720

約数和(自身を除く): 3226241

約数列:

[1, 13, 17, 221, 229, 431, 2977, 3893, 5603, 7327, 50609, 95251, 98699, 1283087, 1677883, 21812479]

約数ペア:

[(1, 21812479), (13, 1677883), (17, 1283087), (221, 98699), (229, 95251), (431, 50609), (2977, 7327), (3893, 5603)]