19684755

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3391}}^1$

素因数の和:3448

約数の個数: 32

約数和(自身を含む): 35819520

約数和(自身を除く): 16134765

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3391, 5805, 10173, 16955, 30519, 50865, 91557, 145813, 152595, 437439, 457785, 729065, 1312317, 2187195, 3936951, 6561585, 19684755]

約数ペア:

[(1, 19684755), (3, 6561585), (5, 3936951), (9, 2187195), (15, 1312317), (27, 729065), (43, 457785), (45, 437439), (129, 152595), (135, 145813), (215, 91557), (387, 50865), (645, 30519), (1161, 16955), (1935, 10173), (3391, 5805)]