21968037

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{8941}}^1$

素因数の和:8970

約数の個数: 32

約数和(自身を含む): 40060160

約数和(自身を除く): 18092123

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 117, 189, 273, 351, 819, 2457, 8941, 26823, 62587, 80469, 116233, 187761, 241407, 348699, 563283, 813631, 1046097, 1689849, 2440893, 3138291, 7322679, 21968037]

約数ペア:

[(1, 21968037), (3, 7322679), (7, 3138291), (9, 2440893), (13, 1689849), (21, 1046097), (27, 813631), (39, 563283), (63, 348699), (91, 241407), (117, 187761), (189, 116233), (273, 80469), (351, 62587), (819, 26823), (2457, 8941)]