20809624

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2657}}^1$

素因数の和:2763

約数の個数: 32

約数和(自身を含む): 43059600

約数和(自身を除く): 22249976

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 89, 178, 356, 712, 979, 1958, 2657, 3916, 5314, 7832, 10628, 21256, 29227, 58454, 116908, 233816, 236473, 472946, 945892, 1891784, 2601203, 5202406, 10404812, 20809624]

約数ペア:

[(1, 20809624), (2, 10404812), (4, 5202406), (8, 2601203), (11, 1891784), (22, 945892), (44, 472946), (88, 236473), (89, 233816), (178, 116908), (356, 58454), (712, 29227), (979, 21256), (1958, 10628), (2657, 7832), (3916, 5314)]