18887805

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{22091}}^1$

素因数の和:22121

約数の個数: 24

約数和(自身を含む): 34463520

約数和(自身を除く): 15575715

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 22091, 66273, 110455, 198819, 331365, 419729, 994095, 1259187, 2098645, 3777561, 6295935, 18887805]

約数ペア:

[(1, 18887805), (3, 6295935), (5, 3777561), (9, 2098645), (15, 1259187), (19, 994095), (45, 419729), (57, 331365), (95, 198819), (171, 110455), (285, 66273), (855, 22091)]