18899620

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2677}}^1$

素因数の和:3039

約数の個数: 24

約数和(自身を含む): 39816504

約数和(自身を除く): 20916884

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2677, 3530, 5354, 7060, 10708, 13385, 26770, 53540, 944981, 1889962, 3779924, 4724905, 9449810, 18899620]

約数ペア:

[(1, 18899620), (2, 9449810), (4, 4724905), (5, 3779924), (10, 1889962), (20, 944981), (353, 53540), (706, 26770), (1412, 13385), (1765, 10708), (2677, 7060), (3530, 5354)]