21178450

素因数分解:

$2^1\times 5^2\times {\mathrm{467}}^1\times {\mathrm{907}}^1$

素因数の和:1386

約数の個数: 24

約数和(自身を含む): 39519792

約数和(自身を除く): 18341342

約数列:

[1, 2, 5, 10, 25, 50, 467, 907, 934, 1814, 2335, 4535, 4670, 9070, 11675, 22675, 23350, 45350, 423569, 847138, 2117845, 4235690, 10589225, 21178450]

約数ペア:

[(1, 21178450), (2, 10589225), (5, 4235690), (10, 2117845), (25, 847138), (50, 423569), (467, 45350), (907, 23350), (934, 22675), (1814, 11675), (2335, 9070), (4535, 4670)]