1621817118

素因数分解:

$2^1\times 3^2\times {\mathrm{90100951}}^1$

素因数の和:90100959

約数の個数: 12

約数和(自身を含む): 3513937128

約数和(自身を除く): 1892120010

約数列:

[1, 2, 3, 6, 9, 18, 90100951, 180201902, 270302853, 540605706, 810908559, 1621817118]

約数ペア:

[(1, 1621817118), (2, 810908559), (3, 540605706), (6, 270302853), (9, 180201902), (18, 90100951)]