20484765

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:483

約数の個数: 64

約数和(自身を含む): 42508800

約数和(自身を除く): 22024035

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 53, 63, 105, 135, 159, 189, 265, 315, 371, 409, 477, 795, 945, 1113, 1227, 1431, 1855, 2045, 2385, 2863, 3339, 3681, 5565, 6135, 7155, 8589, 10017, 11043, 14315, 16695, 18405, 21677, 25767, 42945, 50085, 55215, 65031, 77301, 108385, 128835, 151739, 195093, 325155, 386505, 455217, 585279, 758695, 975465, 1365651, 2276085, 2926395, 4096953, 6828255, 20484765]

約数ペア:

[(1, 20484765), (3, 6828255), (5, 4096953), (7, 2926395), (9, 2276085), (15, 1365651), (21, 975465), (27, 758695), (35, 585279), (45, 455217), (53, 386505), (63, 325155), (105, 195093), (135, 151739), (159, 128835), (189, 108385), (265, 77301), (315, 65031), (371, 55215), (409, 50085), (477, 42945), (795, 25767), (945, 21677), (1113, 18405), (1227, 16695), (1431, 14315), (1855, 11043), (2045, 10017), (2385, 8589), (2863, 7155), (3339, 6135), (3681, 5565)]