21135504

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{33871}}^1$

素因数の和:33895

約数の個数: 40

約数和(自身を含む): 58801792

約数和(自身を除く): 37666288

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 208, 312, 624, 33871, 67742, 101613, 135484, 203226, 270968, 406452, 440323, 541936, 812904, 880646, 1320969, 1625808, 1761292, 2641938, 3522584, 5283876, 7045168, 10567752, 21135504]

約数ペア:

[(1, 21135504), (2, 10567752), (3, 7045168), (4, 5283876), (6, 3522584), (8, 2641938), (12, 1761292), (13, 1625808), (16, 1320969), (24, 880646), (26, 812904), (39, 541936), (48, 440323), (52, 406452), (78, 270968), (104, 203226), (156, 135484), (208, 101613), (312, 67742), (624, 33871)]