20176699221

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{919}}^1$

素因数の和:1219

約数の個数: 96

約数和(自身を含む): 35237030400

約数和(自身を除く): 15060331179

約数列:

[1, 3, 7, 9, 21, 29, 61, 63, 87, 183, 197, 203, 261, 427, 549, 591, 609, 919, 1281, 1379, 1769, 1773, 1827, 2757, 3843, 4137, 5307, 5713, 6433, 8271, 12017, 12383, 12411, 15921, 17139, 19299, 26651, 36051, 37149, 39991, 51417, 56059, 57897, 79953, 84119, 108153, 111447, 119973, 168177, 181043, 186557, 239859, 252357, 348493, 359919, 392413, 504531, 543129, 559671, 757071, 1045479, 1177239, 1267301, 1625711, 1629387, 1679013, 2439451, 3136437, 3531717, 3801903, 4877133, 5250247, 7318353, 11043623, 11379977, 11405709, 14631399, 15750741, 21955059, 33130869, 34139931, 36751729, 47252223, 77305361, 99392607, 102419793, 110255187, 231916083, 320265067, 330765561, 695748249, 960795201, 2241855469, 2882385603, 6725566407, 20176699221]

約数ペア:

[(1, 20176699221), (3, 6725566407), (7, 2882385603), (9, 2241855469), (21, 960795201), (29, 695748249), (61, 330765561), (63, 320265067), (87, 231916083), (183, 110255187), (197, 102419793), (203, 99392607), (261, 77305361), (427, 47252223), (549, 36751729), (591, 34139931), (609, 33130869), (919, 21955059), (1281, 15750741), (1379, 14631399), (1769, 11405709), (1773, 11379977), (1827, 11043623), (2757, 7318353), (3843, 5250247), (4137, 4877133), (5307, 3801903), (5713, 3531717), (6433, 3136437), (8271, 2439451), (12017, 1679013), (12383, 1629387), (12411, 1625711), (15921, 1267301), (17139, 1177239), (19299, 1045479), (26651, 757071), (36051, 559671), (37149, 543129), (39991, 504531), (51417, 392413), (56059, 359919), (57897, 348493), (79953, 252357), (84119, 239859), (108153, 186557), (111447, 181043), (119973, 168177)]