21990284

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4793}}^1$

素因数の和:4865

約数の個数: 24

約数和(自身を含む): 40806528

約数和(自身を除く): 18816244

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 148, 1147, 2294, 4588, 4793, 9586, 19172, 148583, 177341, 297166, 354682, 594332, 709364, 5497571, 10995142, 21990284]

約数ペア:

[(1, 21990284), (2, 10995142), (4, 5497571), (31, 709364), (37, 594332), (62, 354682), (74, 297166), (124, 177341), (148, 148583), (1147, 19172), (2294, 9586), (4588, 4793)]