21645422

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{991}}^1$

素因数の和:1223

約数の個数: 16

約数和(自身を含む): 33188352

約数和(自身を除く): 11542930

約数列:

[1, 2, 67, 134, 163, 326, 991, 1982, 10921, 21842, 66397, 132794, 161533, 323066, 10822711, 21645422]

約数ペア:

[(1, 21645422), (2, 10822711), (67, 323066), (134, 161533), (163, 132794), (326, 66397), (991, 21842), (1982, 10921)]