21069982

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{977}}^1$

素因数の和:1283

約数の個数: 16

約数和(自身を含む): 32532192

約数和(自身を除く): 11462210

約数列:

[1, 2, 41, 82, 263, 526, 977, 1954, 10783, 21566, 40057, 80114, 256951, 513902, 10534991, 21069982]

約数ペア:

[(1, 21069982), (2, 10534991), (41, 513902), (82, 256951), (263, 80114), (526, 40057), (977, 21566), (1954, 10783)]