21764295

素因数分解:

$3^6\times 5^1\times 7^1\times {\mathrm{853}}^1$

素因数の和:883

約数の個数: 56

約数和(自身を含む): 44804256

約数和(自身を除く): 23039961

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 243, 315, 405, 567, 729, 853, 945, 1215, 1701, 2559, 2835, 3645, 4265, 5103, 5971, 7677, 8505, 12795, 17913, 23031, 25515, 29855, 38385, 53739, 69093, 89565, 115155, 161217, 207279, 268695, 345465, 483651, 621837, 806085, 1036395, 1450953, 2418255, 3109185, 4352859, 7254765, 21764295]

約数ペア:

[(1, 21764295), (3, 7254765), (5, 4352859), (7, 3109185), (9, 2418255), (15, 1450953), (21, 1036395), (27, 806085), (35, 621837), (45, 483651), (63, 345465), (81, 268695), (105, 207279), (135, 161217), (189, 115155), (243, 89565), (315, 69093), (405, 53739), (567, 38385), (729, 29855), (853, 25515), (945, 23031), (1215, 17913), (1701, 12795), (2559, 8505), (2835, 7677), (3645, 5971), (4265, 5103)]