21145428

素因数分解:

$2^2\times 3^3\times {\mathrm{195791}}^1$

素因数の和:195804

約数の個数: 24

約数和(自身を含む): 54821760

約数和(自身を除く): 33676332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 195791, 391582, 587373, 783164, 1174746, 1762119, 2349492, 3524238, 5286357, 7048476, 10572714, 21145428]

約数ペア:

[(1, 21145428), (2, 10572714), (3, 7048476), (4, 5286357), (6, 3524238), (9, 2349492), (12, 1762119), (18, 1174746), (27, 783164), (36, 587373), (54, 391582), (108, 195791)]