21291678

素因数分解:

$2^1\times 3^2\times {\mathrm{307}}^1\times {\mathrm{3853}}^1$

素因数の和:4168

約数の個数: 24

約数和(自身を含む): 46294248

約数和(自身を除く): 25002570

約数列:

[1, 2, 3, 6, 9, 18, 307, 614, 921, 1842, 2763, 3853, 5526, 7706, 11559, 23118, 34677, 69354, 1182871, 2365742, 3548613, 7097226, 10645839, 21291678]

約数ペア:

[(1, 21291678), (2, 10645839), (3, 7097226), (6, 3548613), (9, 2365742), (18, 1182871), (307, 69354), (614, 34677), (921, 23118), (1842, 11559), (2763, 7706), (3853, 5526)]