638014713

素因数分解:

$3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{201203}}^1$

素因数の和:201364

約数の個数: 16

約数和(自身を含む): 978656256

約数和(自身を除く): 340641543

約数列:

[1, 3, 7, 21, 151, 453, 1057, 3171, 201203, 603609, 1408421, 4225263, 30381653, 91144959, 212671571, 638014713]

約数ペア:

[(1, 638014713), (3, 212671571), (7, 91144959), (21, 30381653), (151, 4225263), (453, 1408421), (1057, 603609), (3171, 201203)]