21371906

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1\times {\mathrm{991}}^1$

素因数の和:1297

約数の個数: 16

約数和(自身を含む): 32997888

約数和(自身を除く): 11625982

約数列:

[1, 2, 41, 82, 263, 526, 991, 1982, 10783, 21566, 40631, 81262, 260633, 521266, 10685953, 21371906]

約数ペア:

[(1, 21371906), (2, 10685953), (41, 521266), (82, 260633), (263, 81262), (526, 40631), (991, 21566), (1982, 10783)]