21868378

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{883}}^1$

素因数の和:982

約数の個数: 32

約数和(自身を含む): 39461760

約数和(自身を除く): 17593382

約数列:

[1, 2, 7, 14, 29, 58, 61, 122, 203, 406, 427, 854, 883, 1766, 1769, 3538, 6181, 12362, 12383, 24766, 25607, 51214, 53863, 107726, 179249, 358498, 377041, 754082, 1562027, 3124054, 10934189, 21868378]

約数ペア:

[(1, 21868378), (2, 10934189), (7, 3124054), (14, 1562027), (29, 754082), (58, 377041), (61, 358498), (122, 179249), (203, 107726), (406, 53863), (427, 51214), (854, 25607), (883, 24766), (1766, 12383), (1769, 12362), (3538, 6181)]