21688278

素因数分解:

$2^1\times 3^1\times {\mathrm{419}}^1\times {\mathrm{8627}}^1$

素因数の和:9051

約数の個数: 16

約数和(自身を含む): 43485120

約数和(自身を除く): 21796842

約数列:

[1, 2, 3, 6, 419, 838, 1257, 2514, 8627, 17254, 25881, 51762, 3614713, 7229426, 10844139, 21688278]

約数ペア:

[(1, 21688278), (2, 10844139), (3, 7229426), (6, 3614713), (419, 51762), (838, 25881), (1257, 17254), (2514, 8627)]