21813354

素因数分解:

$2^1\times 3^3\times {\mathrm{403951}}^1$

素因数の和:403962

約数の個数: 16

約数和(自身を含む): 48474240

約数和(自身を除く): 26660886

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 403951, 807902, 1211853, 2423706, 3635559, 7271118, 10906677, 21813354]

約数ペア:

[(1, 21813354), (2, 10906677), (3, 7271118), (6, 3635559), (9, 2423706), (18, 1211853), (27, 807902), (54, 403951)]