19856097

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:227

約数の個数: 40

約数和(自身を含む): 31363200

約数和(自身を除く): 11507103

約数列:

[1, 3, 9, 27, 29, 79, 81, 87, 107, 237, 261, 321, 711, 783, 963, 2133, 2291, 2349, 2889, 3103, 6399, 6873, 8453, 8667, 9309, 20619, 25359, 27927, 61857, 76077, 83781, 185571, 228231, 245137, 251343, 684693, 735411, 2206233, 6618699, 19856097]

約数ペア:

[(1, 19856097), (3, 6618699), (9, 2206233), (27, 735411), (29, 684693), (79, 251343), (81, 245137), (87, 228231), (107, 185571), (237, 83781), (261, 76077), (321, 61857), (711, 27927), (783, 25359), (963, 20619), (2133, 9309), (2291, 8667), (2349, 8453), (2889, 6873), (3103, 6399)]