21581958

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{3637}}^1$

素因数の和:3708

約数の個数: 32

約数和(自身を含む): 46100736

約数和(自身を除く): 24518778

約数列:

[1, 2, 3, 6, 23, 43, 46, 69, 86, 129, 138, 258, 989, 1978, 2967, 3637, 5934, 7274, 10911, 21822, 83651, 156391, 167302, 250953, 312782, 469173, 501906, 938346, 3596993, 7193986, 10790979, 21581958]

約数ペア:

[(1, 21581958), (2, 10790979), (3, 7193986), (6, 3596993), (23, 938346), (43, 501906), (46, 469173), (69, 312782), (86, 250953), (129, 167302), (138, 156391), (258, 83651), (989, 21822), (1978, 10911), (2967, 7274), (3637, 5934)]