18411860

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4363}}^1$

素因数の和:4583

約数の個数: 24

約数和(自身を含む): 38857056

約数和(自身を除く): 20445196

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4363, 8726, 17452, 21815, 43630, 87260, 920593, 1841186, 3682372, 4602965, 9205930, 18411860]

約数ペア:

[(1, 18411860), (2, 9205930), (4, 4602965), (5, 3682372), (10, 1841186), (20, 920593), (211, 87260), (422, 43630), (844, 21815), (1055, 17452), (2110, 8726), (4220, 4363)]