21865506

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{280327}}^1$

素因数の和:280345

約数の個数: 16

約数和(自身を含む): 47095104

約数和(自身を除く): 25229598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 280327, 560654, 840981, 1681962, 3644251, 7288502, 10932753, 21865506]

約数ペア:

[(1, 21865506), (2, 10932753), (3, 7288502), (6, 3644251), (13, 1681962), (26, 840981), (39, 560654), (78, 280327)]