21393178

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{6151}}^1$

素因数の和:6237

約数の個数: 16

約数和(自身を含む): 33663744

約数和(自身を除く): 12270566

約数列:

[1, 2, 37, 47, 74, 94, 1739, 3478, 6151, 12302, 227587, 289097, 455174, 578194, 10696589, 21393178]

約数ペア:

[(1, 21393178), (2, 10696589), (37, 578194), (47, 455174), (74, 289097), (94, 227587), (1739, 12302), (3478, 6151)]