178704873

素因数分解:

$3^6\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:233

約数の個数: 56

約数和(自身を含む): 283305600

約数和(自身を除く): 104600727

約数列:

[1, 3, 9, 27, 29, 79, 81, 87, 107, 237, 243, 261, 321, 711, 729, 783, 963, 2133, 2291, 2349, 2889, 3103, 6399, 6873, 7047, 8453, 8667, 9309, 19197, 20619, 21141, 25359, 26001, 27927, 57591, 61857, 76077, 78003, 83781, 185571, 228231, 245137, 251343, 556713, 684693, 735411, 754029, 1670139, 2054079, 2206233, 2262087, 6162237, 6618699, 19856097, 59568291, 178704873]

約数ペア:

[(1, 178704873), (3, 59568291), (9, 19856097), (27, 6618699), (29, 6162237), (79, 2262087), (81, 2206233), (87, 2054079), (107, 1670139), (237, 754029), (243, 735411), (261, 684693), (321, 556713), (711, 251343), (729, 245137), (783, 228231), (963, 185571), (2133, 83781), (2291, 78003), (2349, 76077), (2889, 61857), (3103, 57591), (6399, 27927), (6873, 26001), (7047, 25359), (8453, 21141), (8667, 20619), (9309, 19197)]