21436558

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4409}}^1$

素因数の和:4452

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 18570962

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4409, 4862, 8818, 48499, 57317, 74953, 96998, 114634, 149906, 630487, 824483, 974389, 1260974, 1648966, 1948778, 10718279, 21436558]

約数ペア:

[(1, 21436558), (2, 10718279), (11, 1948778), (13, 1648966), (17, 1260974), (22, 974389), (26, 824483), (34, 630487), (143, 149906), (187, 114634), (221, 96998), (286, 74953), (374, 57317), (442, 48499), (2431, 8818), (4409, 4862)]