18440811

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:480

約数の個数: 32

約数和(自身を含む): 29120000

約数和(自身を除く): 10679189

約数列:

[1, 3, 9, 19, 27, 57, 103, 171, 309, 349, 513, 927, 1047, 1957, 2781, 3141, 5871, 6631, 9423, 17613, 19893, 35947, 52839, 59679, 107841, 179037, 323523, 682993, 970569, 2048979, 6146937, 18440811]

約数ペア:

[(1, 18440811), (3, 6146937), (9, 2048979), (19, 970569), (27, 682993), (57, 323523), (103, 179037), (171, 107841), (309, 59679), (349, 52839), (513, 35947), (927, 19893), (1047, 17613), (1957, 9423), (2781, 6631), (3141, 5871)]