21104816

素因数分解:

$2^4\times {\mathrm{179}}^1\times {\mathrm{7369}}^1$

素因数の和:7556

約数の個数: 20

約数和(自身を含む): 41124600

約数和(自身を除く): 20019784

約数列:

[1, 2, 4, 8, 16, 179, 358, 716, 1432, 2864, 7369, 14738, 29476, 58952, 117904, 1319051, 2638102, 5276204, 10552408, 21104816]

約数ペア:

[(1, 21104816), (2, 10552408), (4, 5276204), (8, 2638102), (16, 1319051), (179, 117904), (358, 58952), (716, 29476), (1432, 14738), (2864, 7369)]