21069872

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{35591}}^1$

素因数の和:35636

約数の個数: 20

約数和(自身を含む): 41927376

約数和(自身を除く): 20857504

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 35591, 71182, 142364, 284728, 569456, 1316867, 2633734, 5267468, 10534936, 21069872]

約数ペア:

[(1, 21069872), (2, 10534936), (4, 5267468), (8, 2633734), (16, 1316867), (37, 569456), (74, 284728), (148, 142364), (296, 71182), (592, 35591)]