21588040

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11483}}^1$

素因数の和:11541

約数の個数: 32

約数和(自身を含む): 49610880

約数和(自身を除く): 28022840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11483, 22966, 45932, 57415, 91864, 114830, 229660, 459320, 539701, 1079402, 2158804, 2698505, 4317608, 5397010, 10794020, 21588040]

約数ペア:

[(1, 21588040), (2, 10794020), (4, 5397010), (5, 4317608), (8, 2698505), (10, 2158804), (20, 1079402), (40, 539701), (47, 459320), (94, 229660), (188, 114830), (235, 91864), (376, 57415), (470, 45932), (940, 22966), (1880, 11483)]