21199080843

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{123971233}}^1$

素因数の和:123971258

約数の個数: 12

約数和(自身を含む): 32232520840

約数和(自身を除く): 11033439997

約数列:

[1, 3, 9, 19, 57, 171, 123971233, 371913699, 1115741097, 2355453427, 7066360281, 21199080843]

約数ペア:

[(1, 21199080843), (3, 7066360281), (9, 2355453427), (19, 1115741097), (57, 371913699), (171, 123971233)]