20502573

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1$

素因数の和:198

約数の個数: 48

約数和(自身を含む): 34784640

約数和(自身を除く): 14282067

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 109, 159, 169, 273, 327, 371, 507, 689, 763, 1113, 1183, 1417, 2067, 2289, 3549, 4251, 4823, 5777, 8957, 9919, 14469, 17331, 18421, 26871, 29757, 40439, 55263, 62699, 75101, 121317, 128947, 188097, 225303, 386841, 525707, 976313, 1577121, 2928939, 6834191, 20502573]

約数ペア:

[(1, 20502573), (3, 6834191), (7, 2928939), (13, 1577121), (21, 976313), (39, 525707), (53, 386841), (91, 225303), (109, 188097), (159, 128947), (169, 121317), (273, 75101), (327, 62699), (371, 55263), (507, 40439), (689, 29757), (763, 26871), (1113, 18421), (1183, 17331), (1417, 14469), (2067, 9919), (2289, 8957), (3549, 5777), (4251, 4823)]