201821139

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1399}}^1$

素因数の和:1561

約数の個数: 40

約数和(自身を含む): 327280800

約数和(自身を除く): 125459661

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 137, 351, 411, 1053, 1233, 1399, 1781, 3699, 4197, 5343, 11097, 12591, 16029, 18187, 37773, 48087, 54561, 113319, 144261, 163683, 191663, 491049, 574989, 1473147, 1724967, 2491619, 5174901, 7474857, 15524703, 22424571, 67273713, 201821139]

約数ペア:

[(1, 201821139), (3, 67273713), (9, 22424571), (13, 15524703), (27, 7474857), (39, 5174901), (81, 2491619), (117, 1724967), (137, 1473147), (351, 574989), (411, 491049), (1053, 191663), (1233, 163683), (1399, 144261), (1781, 113319), (3699, 54561), (4197, 48087), (5343, 37773), (11097, 18187), (12591, 16029)]