20187387

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:325

約数の個数: 40

約数和(自身を含む): 33337920

約数和(自身を除く): 13150533

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 139, 163, 297, 417, 489, 891, 1251, 1467, 1529, 1793, 3753, 4401, 4587, 5379, 11259, 13203, 13761, 16137, 22657, 41283, 48411, 67971, 123849, 145233, 203913, 249227, 611739, 747681, 1835217, 2243043, 6729129, 20187387]

約数ペア:

[(1, 20187387), (3, 6729129), (9, 2243043), (11, 1835217), (27, 747681), (33, 611739), (81, 249227), (99, 203913), (139, 145233), (163, 123849), (297, 67971), (417, 48411), (489, 41283), (891, 22657), (1251, 16137), (1467, 13761), (1529, 13203), (1793, 11259), (3753, 5379), (4401, 4587)]