21626254

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{587}}^1$

素因数の和:724

約数の個数: 24

約数和(自身を含む): 35509320

約数和(自身を除く): 13883066

約数列:

[1, 2, 13, 26, 109, 169, 218, 338, 587, 1174, 1417, 2834, 7631, 15262, 18421, 36842, 63983, 99203, 127966, 198406, 831779, 1663558, 10813127, 21626254]

約数ペア:

[(1, 21626254), (2, 10813127), (13, 1663558), (26, 831779), (109, 198406), (169, 127966), (218, 99203), (338, 63983), (587, 36842), (1174, 18421), (1417, 15262), (2834, 7631)]