20813576

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{21863}}^1$

素因数の和:21893

約数の個数: 32

約数和(自身を含む): 47226240

約数和(自身を除く): 26412664

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 238, 476, 952, 21863, 43726, 87452, 153041, 174904, 306082, 371671, 612164, 743342, 1224328, 1486684, 2601697, 2973368, 5203394, 10406788, 20813576]

約数ペア:

[(1, 20813576), (2, 10406788), (4, 5203394), (7, 2973368), (8, 2601697), (14, 1486684), (17, 1224328), (28, 743342), (34, 612164), (56, 371671), (68, 306082), (119, 174904), (136, 153041), (238, 87452), (476, 43726), (952, 21863)]