21321345

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{2687}}^1$

素因数の和:2741

約数の個数: 24

約数和(自身を含む): 35675136

約数和(自身を除く): 14353791

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 529, 1587, 2645, 2687, 7935, 8061, 13435, 40305, 61801, 185403, 309005, 927015, 1421423, 4264269, 7107115, 21321345]

約数ペア:

[(1, 21321345), (3, 7107115), (5, 4264269), (15, 1421423), (23, 927015), (69, 309005), (115, 185403), (345, 61801), (529, 40305), (1587, 13435), (2645, 8061), (2687, 7935)]