21023090

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191119}}^1$

素因数の和:191137

約数の個数: 16

約数和(自身を含む): 41281920

約数和(自身を除く): 20258830

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 191119, 382238, 955595, 1911190, 2102309, 4204618, 10511545, 21023090]

約数ペア:

[(1, 21023090), (2, 10511545), (5, 4204618), (10, 2102309), (11, 1911190), (22, 955595), (55, 382238), (110, 191119)]