21878568

素因数分解:

$2^3\times 3^2\times {\mathrm{277}}^1\times {\mathrm{1097}}^1$

素因数の和:1386

約数の個数: 48

約数和(自身を含む): 59522580

約数和(自身を除く): 37644012

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 277, 554, 831, 1097, 1108, 1662, 2194, 2216, 2493, 3291, 3324, 4388, 4986, 6582, 6648, 8776, 9873, 9972, 13164, 19746, 19944, 26328, 39492, 78984, 303869, 607738, 911607, 1215476, 1823214, 2430952, 2734821, 3646428, 5469642, 7292856, 10939284, 21878568]

約数ペア:

[(1, 21878568), (2, 10939284), (3, 7292856), (4, 5469642), (6, 3646428), (8, 2734821), (9, 2430952), (12, 1823214), (18, 1215476), (24, 911607), (36, 607738), (72, 303869), (277, 78984), (554, 39492), (831, 26328), (1097, 19944), (1108, 19746), (1662, 13164), (2194, 9972), (2216, 9873), (2493, 8776), (3291, 6648), (3324, 6582), (4388, 4986)]