21782955

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{613}}^1$

素因数の和:747

約数の個数: 32

約数和(自身を含む): 36781056

約数和(自身を除く): 14998101

約数列:

[1, 3, 5, 15, 23, 69, 103, 115, 309, 345, 515, 613, 1545, 1839, 2369, 3065, 7107, 9195, 11845, 14099, 35535, 42297, 63139, 70495, 189417, 211485, 315695, 947085, 1452197, 4356591, 7260985, 21782955]

約数ペア:

[(1, 21782955), (3, 7260985), (5, 4356591), (15, 1452197), (23, 947085), (69, 315695), (103, 211485), (115, 189417), (309, 70495), (345, 63139), (515, 42297), (613, 35535), (1545, 14099), (1839, 11845), (2369, 9195), (3065, 7107)]