21380458842

素因数分解:

$2^1\times 3^4\times {\mathrm{67}}^1\times {\mathrm{181}}^1\times {\mathrm{10883}}^1$

素因数の和:11145

約数の個数: 80

約数和(自身を含む): 48896239392

約数和(自身を除く): 27515780550

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 81, 134, 162, 181, 201, 362, 402, 543, 603, 1086, 1206, 1629, 1809, 3258, 3618, 4887, 5427, 9774, 10854, 10883, 12127, 14661, 21766, 24254, 29322, 32649, 36381, 65298, 72762, 97947, 109143, 195894, 218286, 293841, 327429, 587682, 654858, 729161, 881523, 982287, 1458322, 1763046, 1964574, 1969823, 2187483, 3939646, 4374966, 5909469, 6562449, 11818938, 13124898, 17728407, 19687347, 35456814, 39374694, 53185221, 59062041, 106370442, 118124082, 131978141, 159555663, 263956282, 319111326, 395934423, 791868846, 1187803269, 2375606538, 3563409807, 7126819614, 10690229421, 21380458842]

約数ペア:

[(1, 21380458842), (2, 10690229421), (3, 7126819614), (6, 3563409807), (9, 2375606538), (18, 1187803269), (27, 791868846), (54, 395934423), (67, 319111326), (81, 263956282), (134, 159555663), (162, 131978141), (181, 118124082), (201, 106370442), (362, 59062041), (402, 53185221), (543, 39374694), (603, 35456814), (1086, 19687347), (1206, 17728407), (1629, 13124898), (1809, 11818938), (3258, 6562449), (3618, 5909469), (4887, 4374966), (5427, 3939646), (9774, 2187483), (10854, 1969823), (10883, 1964574), (12127, 1763046), (14661, 1458322), (21766, 982287), (24254, 881523), (29322, 729161), (32649, 654858), (36381, 587682), (65298, 327429), (72762, 293841), (97947, 218286), (109143, 195894)]