20697194

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 41472000

約数和(自身を除く): 20774806

約数列:

[1, 2, 7, 14, 17, 19, 23, 34, 38, 46, 119, 133, 161, 199, 238, 266, 322, 323, 391, 398, 437, 646, 782, 874, 1393, 2261, 2737, 2786, 3059, 3383, 3781, 4522, 4577, 5474, 6118, 6766, 7429, 7562, 9154, 14858, 23681, 26467, 32039, 47362, 52003, 52934, 64078, 64277, 77809, 86963, 104006, 128554, 155618, 173926, 449939, 544663, 608741, 899878, 1089326, 1217482, 1478371, 2956742, 10348597, 20697194]

約数ペア:

[(1, 20697194), (2, 10348597), (7, 2956742), (14, 1478371), (17, 1217482), (19, 1089326), (23, 899878), (34, 608741), (38, 544663), (46, 449939), (119, 173926), (133, 155618), (161, 128554), (199, 104006), (238, 86963), (266, 77809), (322, 64277), (323, 64078), (391, 52934), (398, 52003), (437, 47362), (646, 32039), (782, 26467), (874, 23681), (1393, 14858), (2261, 9154), (2737, 7562), (2786, 7429), (3059, 6766), (3383, 6118), (3781, 5474), (4522, 4577)]