21285186

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{272887}}^1$

素因数の和:272905

約数の個数: 16

約数和(自身を含む): 45845184

約数和(自身を除く): 24559998

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 272887, 545774, 818661, 1637322, 3547531, 7095062, 10642593, 21285186]

約数ペア:

[(1, 21285186), (2, 10642593), (3, 7095062), (6, 3547531), (13, 1637322), (26, 818661), (39, 545774), (78, 272887)]