21641774

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1579}}^1$

素因数の和:1688

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 19311826

約数列:

[1, 2, 7, 11, 14, 22, 77, 89, 154, 178, 623, 979, 1246, 1579, 1958, 3158, 6853, 11053, 13706, 17369, 22106, 34738, 121583, 140531, 243166, 281062, 983717, 1545841, 1967434, 3091682, 10820887, 21641774]

約数ペア:

[(1, 21641774), (2, 10820887), (7, 3091682), (11, 1967434), (14, 1545841), (22, 983717), (77, 281062), (89, 243166), (154, 140531), (178, 121583), (623, 34738), (979, 22106), (1246, 17369), (1579, 13706), (1958, 11053), (3158, 6853)]