21957256

素因数分解:

$2^3\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:453

約数の個数: 32

約数和(自身を含む): 42107040

約数和(自身を除く): 20149784

約数列:

[1, 2, 4, 8, 107, 113, 214, 226, 227, 428, 452, 454, 856, 904, 908, 1816, 12091, 24182, 24289, 25651, 48364, 48578, 51302, 96728, 97156, 102604, 194312, 205208, 2744657, 5489314, 10978628, 21957256]

約数ペア:

[(1, 21957256), (2, 10978628), (4, 5489314), (8, 2744657), (107, 205208), (113, 194312), (214, 102604), (226, 97156), (227, 96728), (428, 51302), (452, 48578), (454, 48364), (856, 25651), (904, 24289), (908, 24182), (1816, 12091)]