21019878

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^2\times {\mathrm{3217}}^1$

素因数の和:3250

約数の個数: 48

約数和(自身を含む): 51359280

約数和(自身を除く): 30339402

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 99, 121, 198, 242, 297, 363, 594, 726, 1089, 2178, 3217, 3267, 6434, 6534, 9651, 19302, 28953, 35387, 57906, 70774, 86859, 106161, 173718, 212322, 318483, 389257, 636966, 778514, 955449, 1167771, 1910898, 2335542, 3503313, 7006626, 10509939, 21019878]

約数ペア:

[(1, 21019878), (2, 10509939), (3, 7006626), (6, 3503313), (9, 2335542), (11, 1910898), (18, 1167771), (22, 955449), (27, 778514), (33, 636966), (54, 389257), (66, 318483), (99, 212322), (121, 173718), (198, 106161), (242, 86859), (297, 70774), (363, 57906), (594, 35387), (726, 28953), (1089, 19302), (2178, 9651), (3217, 6534), (3267, 6434)]