21390618

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{187637}}^1$

素因数の和:187661

約数の個数: 16

約数和(自身を含む): 45033120

約数和(自身を除く): 23642502

約数列:

[1, 2, 3, 6, 19, 38, 57, 114, 187637, 375274, 562911, 1125822, 3565103, 7130206, 10695309, 21390618]

約数ペア:

[(1, 21390618), (2, 10695309), (3, 7130206), (6, 3565103), (19, 1125822), (38, 562911), (57, 375274), (114, 187637)]