1387421709

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{648631}}^1$

素因数の和:648688

約数の個数: 16

約数和(自身を含む): 1992597504

約数和(自身を除く): 605175795

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 648631, 1945893, 14918513, 20107561, 44755539, 60322683, 462473903, 1387421709]

約数ペア:

[(1, 1387421709), (3, 462473903), (23, 60322683), (31, 44755539), (69, 20107561), (93, 14918513), (713, 1945893), (2139, 648631)]