19766649

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{2861}}^1$

素因数の和:2925

約数の個数: 24

約数和(自身を含む): 31321728

約数和(自身を除く): 11555079

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 987, 2303, 2861, 6909, 8583, 20027, 60081, 134467, 140189, 403401, 420567, 941269, 2823807, 6588883, 19766649]

約数ペア:

[(1, 19766649), (3, 6588883), (7, 2823807), (21, 941269), (47, 420567), (49, 403401), (141, 140189), (147, 134467), (329, 60081), (987, 20027), (2303, 8583), (2861, 6909)]