21052018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47629}}^1$

素因数の和:47661

約数の個数: 16

約数和(自身を含む): 36008280

約数和(自身を除く): 14956262

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 47629, 95258, 619177, 809693, 1238354, 1619386, 10526009, 21052018]

約数ペア:

[(1, 21052018), (2, 10526009), (13, 1619386), (17, 1238354), (26, 809693), (34, 619177), (221, 95258), (442, 47629)]