21392742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{1283}}^1$

素因数の和:1692

約数の個数: 32

約数和(自身を含む): 49059072

約数和(自身を除く): 27666330

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 397, 794, 1191, 1283, 2382, 2566, 2779, 3849, 5558, 7698, 8337, 8981, 16674, 17962, 26943, 53886, 509351, 1018702, 1528053, 3056106, 3565457, 7130914, 10696371, 21392742]

約数ペア:

[(1, 21392742), (2, 10696371), (3, 7130914), (6, 3565457), (7, 3056106), (14, 1528053), (21, 1018702), (42, 509351), (397, 53886), (794, 26943), (1191, 17962), (1283, 16674), (2382, 8981), (2566, 8337), (2779, 7698), (3849, 5558)]