21751998

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{190807}}^1$

素因数の和:190831

約数の個数: 16

約数和(自身を含む): 45793920

約数和(自身を除く): 24041922

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 190807, 381614, 572421, 1144842, 3625333, 7250666, 10875999, 21751998]

約数ペア:

[(1, 21751998), (2, 10875999), (3, 7250666), (6, 3625333), (19, 1144842), (38, 572421), (57, 381614), (114, 190807)]