638510222

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1982951}}^1$

素因数の和:1982983

約数の個数: 16

約数和(自身を含む): 1142180352

約数和(自身を除く): 503670130

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 1982951, 3965902, 13880657, 27761314, 45607873, 91215746, 319255111, 638510222]

約数ペア:

[(1, 638510222), (2, 319255111), (7, 91215746), (14, 45607873), (23, 27761314), (46, 13880657), (161, 3965902), (322, 1982951)]