21177610

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19429}}^1$

素因数の和:19545

約数の個数: 16

約数和(自身を含む): 38471400

約数和(自身を除く): 17293790

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19429, 38858, 97145, 194290, 2117761, 4235522, 10588805, 21177610]

約数ペア:

[(1, 21177610), (2, 10588805), (5, 4235522), (10, 2117761), (109, 194290), (218, 97145), (545, 38858), (1090, 19429)]