221253916

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{4254883}}^1$

素因数の和:4254900

約数の個数: 12

約数和(自身を含む): 416978632

約数和(自身を除く): 195724716

約数列:

[1, 2, 4, 13, 26, 52, 4254883, 8509766, 17019532, 55313479, 110626958, 221253916]

約数ペア:

[(1, 221253916), (2, 110626958), (4, 55313479), (13, 17019532), (26, 8509766), (52, 4254883)]