21001986

素因数分解:

$2^1\times 3^2\times {\mathrm{151}}^1\times {\mathrm{7727}}^1$

素因数の和:7886

約数の個数: 24

約数和(自身を含む): 45811584

約数和(自身を除く): 24809598

約数列:

[1, 2, 3, 6, 9, 18, 151, 302, 453, 906, 1359, 2718, 7727, 15454, 23181, 46362, 69543, 139086, 1166777, 2333554, 3500331, 7000662, 10500993, 21001986]

約数ペア:

[(1, 21001986), (2, 10500993), (3, 7000662), (6, 3500331), (9, 2333554), (18, 1166777), (151, 139086), (302, 69543), (453, 46362), (906, 23181), (1359, 15454), (2718, 7727)]