21255452

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{911}}^1$

素因数の和:1241

約数の個数: 24

約数和(自身を含む): 39325440

約数和(自身を除く): 18069988

約数列:

[1, 2, 4, 19, 38, 76, 307, 614, 911, 1228, 1822, 3644, 5833, 11666, 17309, 23332, 34618, 69236, 279677, 559354, 1118708, 5313863, 10627726, 21255452]

約数ペア:

[(1, 21255452), (2, 10627726), (4, 5313863), (19, 1118708), (38, 559354), (76, 279677), (307, 69236), (614, 34618), (911, 23332), (1228, 17309), (1822, 11666), (3644, 5833)]