21722636

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{997}}^1$

素因数の和:1433

約数の個数: 24

約数和(自身を含む): 41077680

約数和(自身を除く): 19355044

約数列:

[1, 2, 4, 13, 26, 52, 419, 838, 997, 1676, 1994, 3988, 5447, 10894, 12961, 21788, 25922, 51844, 417743, 835486, 1670972, 5430659, 10861318, 21722636]

約数ペア:

[(1, 21722636), (2, 10861318), (4, 5430659), (13, 1670972), (26, 835486), (52, 417743), (419, 51844), (838, 25922), (997, 21788), (1676, 12961), (1994, 10894), (3988, 5447)]