20893420

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1931}}^1$

素因数の和:2481

約数の個数: 24

約数和(自身を含む): 43980048

約数和(自身を除く): 23086628

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 1931, 2164, 2705, 3862, 5410, 7724, 9655, 10820, 19310, 38620, 1044671, 2089342, 4178684, 5223355, 10446710, 20893420]

約数ペア:

[(1, 20893420), (2, 10446710), (4, 5223355), (5, 4178684), (10, 2089342), (20, 1044671), (541, 38620), (1082, 19310), (1931, 10820), (2164, 9655), (2705, 7724), (3862, 5410)]