18981090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{210901}}^1$

素因数の和:210914

約数の個数: 24

約数和(自身を含む): 49351068

約数和(自身を除く): 30369978

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 210901, 421802, 632703, 1054505, 1265406, 1898109, 2109010, 3163515, 3796218, 6327030, 9490545, 18981090]

約数ペア:

[(1, 18981090), (2, 9490545), (3, 6327030), (5, 3796218), (6, 3163515), (9, 2109010), (10, 1898109), (15, 1265406), (18, 1054505), (30, 632703), (45, 421802), (90, 210901)]