18220906

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1$

素因数の和:187

約数の個数: 48

約数和(自身を含む): 32864832

約数和(自身を除く): 14643926

約数列:

[1, 2, 11, 17, 22, 34, 43, 86, 103, 121, 187, 206, 242, 374, 473, 731, 946, 1133, 1462, 1751, 2057, 2266, 3502, 4114, 4429, 5203, 8041, 8858, 10406, 12463, 16082, 19261, 24926, 38522, 48719, 75293, 88451, 97438, 150586, 176902, 211871, 423742, 535909, 828223, 1071818, 1656446, 9110453, 18220906]

約数ペア:

[(1, 18220906), (2, 9110453), (11, 1656446), (17, 1071818), (22, 828223), (34, 535909), (43, 423742), (86, 211871), (103, 176902), (121, 150586), (187, 97438), (206, 88451), (242, 75293), (374, 48719), (473, 38522), (731, 24926), (946, 19261), (1133, 16082), (1462, 12463), (1751, 10406), (2057, 8858), (2266, 8041), (3502, 5203), (4114, 4429)]