21604908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{138493}}^1$

素因数の和:138513

約数の個数: 24

約数和(自身を含む): 54289648

約数和(自身を除く): 32684740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 138493, 276986, 415479, 553972, 830958, 1661916, 1800409, 3600818, 5401227, 7201636, 10802454, 21604908]

約数ペア:

[(1, 21604908), (2, 10802454), (3, 7201636), (4, 5401227), (6, 3600818), (12, 1800409), (13, 1661916), (26, 830958), (39, 553972), (52, 415479), (78, 276986), (156, 138493)]