21143600

素因数分解:

$2^4\times 5^2\times {\mathrm{52859}}^1$

素因数の和:52877

約数の個数: 30

約数和(自身を含む): 50798460

約数和(自身を除く): 29654860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52859, 105718, 211436, 264295, 422872, 528590, 845744, 1057180, 1321475, 2114360, 2642950, 4228720, 5285900, 10571800, 21143600]

約数ペア:

[(1, 21143600), (2, 10571800), (4, 5285900), (5, 4228720), (8, 2642950), (10, 2114360), (16, 1321475), (20, 1057180), (25, 845744), (40, 528590), (50, 422872), (80, 264295), (100, 211436), (200, 105718), (400, 52859)]