20986816

素因数分解:

$2^6\times {\mathrm{47}}^1\times {\mathrm{6977}}^1$

素因数の和:7036

約数の個数: 28

約数和(自身を含む): 42537888

約数和(自身を除く): 21551072

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 188, 376, 752, 1504, 3008, 6977, 13954, 27908, 55816, 111632, 223264, 327919, 446528, 655838, 1311676, 2623352, 5246704, 10493408, 20986816]

約数ペア:

[(1, 20986816), (2, 10493408), (4, 5246704), (8, 2623352), (16, 1311676), (32, 655838), (47, 446528), (64, 327919), (94, 223264), (188, 111632), (376, 55816), (752, 27908), (1504, 13954), (3008, 6977)]