19871494

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{1031}}^1$

素因数の和:1475

約数の個数: 16

約数和(自身を含む): 31207680

約数和(自身を除く): 11336186

約数列:

[1, 2, 23, 46, 419, 838, 1031, 2062, 9637, 19274, 23713, 47426, 431989, 863978, 9935747, 19871494]

約数ペア:

[(1, 19871494), (2, 9935747), (23, 863978), (46, 431989), (419, 47426), (838, 23713), (1031, 19274), (2062, 9637)]