21884665

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{593}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 29388744

約数和(自身を除く): 7504079

約数列:

[1, 5, 11, 55, 61, 121, 305, 593, 605, 671, 2965, 3355, 6523, 7381, 32615, 36173, 36905, 71753, 180865, 358765, 397903, 1989515, 4376933, 21884665]

約数ペア:

[(1, 21884665), (5, 4376933), (11, 1989515), (55, 397903), (61, 358765), (121, 180865), (305, 71753), (593, 36905), (605, 36173), (671, 32615), (2965, 7381), (3355, 6523)]