21066174

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1987}}^1$

素因数の和:2045

約数の個数: 48

約数和(自身を含む): 49620480

約数和(自身を除く): 28554306

約数列:

[1, 2, 3, 6, 9, 18, 19, 31, 38, 57, 62, 93, 114, 171, 186, 279, 342, 558, 589, 1178, 1767, 1987, 3534, 3974, 5301, 5961, 10602, 11922, 17883, 35766, 37753, 61597, 75506, 113259, 123194, 184791, 226518, 339777, 369582, 554373, 679554, 1108746, 1170343, 2340686, 3511029, 7022058, 10533087, 21066174]

約数ペア:

[(1, 21066174), (2, 10533087), (3, 7022058), (6, 3511029), (9, 2340686), (18, 1170343), (19, 1108746), (31, 679554), (38, 554373), (57, 369582), (62, 339777), (93, 226518), (114, 184791), (171, 123194), (186, 113259), (279, 75506), (342, 61597), (558, 37753), (589, 35766), (1178, 17883), (1767, 11922), (1987, 10602), (3534, 5961), (3974, 5301)]