21780492

素因数分解:

$2^2\times 3^1\times {\mathrm{107}}^1\times {\mathrm{16963}}^1$

素因数の和:17077

約数の個数: 24

約数和(自身を含む): 51299136

約数和(自身を除く): 29518644

約数列:

[1, 2, 3, 4, 6, 12, 107, 214, 321, 428, 642, 1284, 16963, 33926, 50889, 67852, 101778, 203556, 1815041, 3630082, 5445123, 7260164, 10890246, 21780492]

約数ペア:

[(1, 21780492), (2, 10890246), (3, 7260164), (4, 5445123), (6, 3630082), (12, 1815041), (107, 203556), (214, 101778), (321, 67852), (428, 50889), (642, 33926), (1284, 16963)]