21204828

素因数分解:

$2^2\times 3^4\times {\mathrm{65447}}^1$

素因数の和:65463

約数の個数: 30

約数和(自身を含む): 55434456

約数和(自身を除く): 34229628

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 65447, 130894, 196341, 261788, 392682, 589023, 785364, 1178046, 1767069, 2356092, 3534138, 5301207, 7068276, 10602414, 21204828]

約数ペア:

[(1, 21204828), (2, 10602414), (3, 7068276), (4, 5301207), (6, 3534138), (9, 2356092), (12, 1767069), (18, 1178046), (27, 785364), (36, 589023), (54, 392682), (81, 261788), (108, 196341), (162, 130894), (324, 65447)]