21291292

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{5437}}^1$

素因数の和:5541

約数の個数: 24

約数和(自身を含む): 41111280

約数和(自身を除く): 19819988

約数列:

[1, 2, 4, 11, 22, 44, 89, 178, 356, 979, 1958, 3916, 5437, 10874, 21748, 59807, 119614, 239228, 483893, 967786, 1935572, 5322823, 10645646, 21291292]

約数ペア:

[(1, 21291292), (2, 10645646), (4, 5322823), (11, 1935572), (22, 967786), (44, 483893), (89, 239228), (178, 119614), (356, 59807), (979, 21748), (1958, 10874), (3916, 5437)]