21889360

素因数分解:

$2^4\times 5^1\times {\mathrm{273617}}^1$

素因数の和:273630

約数の個数: 20

約数和(自身を含む): 50892948

約数和(自身を除く): 29003588

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 273617, 547234, 1094468, 1368085, 2188936, 2736170, 4377872, 5472340, 10944680, 21889360]

約数ペア:

[(1, 21889360), (2, 10944680), (4, 5472340), (5, 4377872), (8, 2736170), (10, 2188936), (16, 1368085), (20, 1094468), (40, 547234), (80, 273617)]