21553428

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138163}}^1$

素因数の和:138183

約数の個数: 24

約数和(自身を含む): 54160288

約数和(自身を除く): 32606860

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138163, 276326, 414489, 552652, 828978, 1657956, 1796119, 3592238, 5388357, 7184476, 10776714, 21553428]

約数ペア:

[(1, 21553428), (2, 10776714), (3, 7184476), (4, 5388357), (6, 3592238), (12, 1796119), (13, 1657956), (26, 828978), (39, 552652), (52, 414489), (78, 276326), (156, 138163)]