18956223

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 54

約数和(自身を含む): 32906328

約数和(自身を除く): 13950105

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 103, 117, 121, 143, 169, 309, 363, 429, 507, 927, 1089, 1133, 1287, 1339, 1521, 1573, 1859, 3399, 4017, 4719, 5577, 10197, 12051, 12463, 14157, 14729, 16731, 17407, 20449, 37389, 44187, 52221, 61347, 112167, 132561, 156663, 162019, 184041, 191477, 486057, 574431, 1458171, 1723293, 2106247, 6318741, 18956223]

約数ペア:

[(1, 18956223), (3, 6318741), (9, 2106247), (11, 1723293), (13, 1458171), (33, 574431), (39, 486057), (99, 191477), (103, 184041), (117, 162019), (121, 156663), (143, 132561), (169, 112167), (309, 61347), (363, 52221), (429, 44187), (507, 37389), (927, 20449), (1089, 17407), (1133, 16731), (1287, 14729), (1339, 14157), (1521, 12463), (1573, 12051), (1859, 10197), (3399, 5577), (4017, 4719)]