18331047

素因数分解:

$3^2\times 7^2\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:428

約数の個数: 36

約数和(自身を含む): 31104216

約数和(自身を除く): 12773169

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 197, 211, 441, 591, 633, 1379, 1477, 1773, 1899, 4137, 4431, 9653, 10339, 12411, 13293, 28959, 31017, 41567, 86877, 93051, 124701, 290969, 374103, 872907, 2036783, 2618721, 6110349, 18331047]

約数ペア:

[(1, 18331047), (3, 6110349), (7, 2618721), (9, 2036783), (21, 872907), (49, 374103), (63, 290969), (147, 124701), (197, 93051), (211, 86877), (441, 41567), (591, 31017), (633, 28959), (1379, 13293), (1477, 12411), (1773, 10339), (1899, 9653), (4137, 4431)]