18922995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4621}}^1$

素因数の和:4652

約数の個数: 48

約数和(自身を含む): 40377792

約数和(自身を除く): 21454797

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 4095, 4621, 13863, 23105, 32347, 41589, 60073, 69315, 97041, 161735, 180219, 207945, 291123, 300365, 420511, 485205, 540657, 901095, 1261533, 1455615, 2102555, 2703285, 3784599, 6307665, 18922995]

約数ペア:

[(1, 18922995), (3, 6307665), (5, 3784599), (7, 2703285), (9, 2102555), (13, 1455615), (15, 1261533), (21, 901095), (35, 540657), (39, 485205), (45, 420511), (63, 300365), (65, 291123), (91, 207945), (105, 180219), (117, 161735), (195, 97041), (273, 69315), (315, 60073), (455, 41589), (585, 32347), (819, 23105), (1365, 13863), (4095, 4621)]