28202013

素因数分解:

$3^4\times 7^1\times {\mathrm{49739}}^1$

素因数の和:49758

約数の個数: 20

約数和(自身を含む): 48148320

約数和(自身を除く): 19946307

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49739, 149217, 348173, 447651, 1044519, 1342953, 3133557, 4028859, 9400671, 28202013]

約数ペア:

[(1, 28202013), (3, 9400671), (7, 4028859), (9, 3133557), (21, 1342953), (27, 1044519), (63, 447651), (81, 348173), (189, 149217), (567, 49739)]