21036868

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{463}}^1$

素因数の和:811

約数の個数: 24

約数和(自身を含む): 38014592

約数和(自身を除く): 16977724

約数列:

[1, 2, 4, 37, 74, 148, 307, 463, 614, 926, 1228, 1852, 11359, 17131, 22718, 34262, 45436, 68524, 142141, 284282, 568564, 5259217, 10518434, 21036868]

約数ペア:

[(1, 21036868), (2, 10518434), (4, 5259217), (37, 568564), (74, 284282), (148, 142141), (307, 68524), (463, 45436), (614, 34262), (926, 22718), (1228, 17131), (1852, 11359)]