21058880

素因数分解:

$2^6\times 5^1\times {\mathrm{65809}}^1$

素因数の和:65826

約数の個数: 28

約数和(自身を含む): 50147220

約数和(自身を除く): 29088340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 65809, 131618, 263236, 329045, 526472, 658090, 1052944, 1316180, 2105888, 2632360, 4211776, 5264720, 10529440, 21058880]

約数ペア:

[(1, 21058880), (2, 10529440), (4, 5264720), (5, 4211776), (8, 2632360), (10, 2105888), (16, 1316180), (20, 1052944), (32, 658090), (40, 526472), (64, 329045), (80, 263236), (160, 131618), (320, 65809)]