21284758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{2437}}^1$

素因数の和:2847

約数の個数: 16

約数和(自身を含む): 34931664

約数和(自身を除く): 13646906

約数列:

[1, 2, 11, 22, 397, 794, 2437, 4367, 4874, 8734, 26807, 53614, 967489, 1934978, 10642379, 21284758]

約数ペア:

[(1, 21284758), (2, 10642379), (11, 1934978), (22, 967489), (397, 53614), (794, 26807), (2437, 8734), (4367, 4874)]