21875415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:583

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 14965545

約数列:

[1, 3, 5, 15, 23, 69, 115, 163, 345, 389, 489, 815, 1167, 1945, 2445, 3749, 5835, 8947, 11247, 18745, 26841, 44735, 56235, 63407, 134205, 190221, 317035, 951105, 1458361, 4375083, 7291805, 21875415]

約数ペア:

[(1, 21875415), (3, 7291805), (5, 4375083), (15, 1458361), (23, 951105), (69, 317035), (115, 190221), (163, 134205), (345, 63407), (389, 56235), (489, 44735), (815, 26841), (1167, 18745), (1945, 11247), (2445, 8947), (3749, 5835)]