21306714

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1307}}^1$

素因数の和:1355

約数の個数: 64

約数和(自身を含む): 52738560

約数和(自身を除く): 31431846

約数列:

[1, 2, 3, 6, 11, 13, 19, 22, 26, 33, 38, 39, 57, 66, 78, 114, 143, 209, 247, 286, 418, 429, 494, 627, 741, 858, 1254, 1307, 1482, 2614, 2717, 3921, 5434, 7842, 8151, 14377, 16302, 16991, 24833, 28754, 33982, 43131, 49666, 50973, 74499, 86262, 101946, 148998, 186901, 273163, 322829, 373802, 546326, 560703, 645658, 819489, 968487, 1121406, 1638978, 1936974, 3551119, 7102238, 10653357, 21306714]

約数ペア:

[(1, 21306714), (2, 10653357), (3, 7102238), (6, 3551119), (11, 1936974), (13, 1638978), (19, 1121406), (22, 968487), (26, 819489), (33, 645658), (38, 560703), (39, 546326), (57, 373802), (66, 322829), (78, 273163), (114, 186901), (143, 148998), (209, 101946), (247, 86262), (286, 74499), (418, 50973), (429, 49666), (494, 43131), (627, 33982), (741, 28754), (858, 24833), (1254, 16991), (1307, 16302), (1482, 14377), (2614, 8151), (2717, 7842), (3921, 5434)]