221434378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{521}}^1\times {\mathrm{19319}}^1$

素因数の和:19853

約数の個数: 16

約数和(自身を含む): 363061440

約数和(自身を除く): 141627062

約数列:

[1, 2, 11, 22, 521, 1042, 5731, 11462, 19319, 38638, 212509, 425018, 10065199, 20130398, 110717189, 221434378]

約数ペア:

[(1, 221434378), (2, 110717189), (11, 20130398), (22, 10065199), (521, 425018), (1042, 212509), (5731, 38638), (11462, 19319)]