20377665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5881}}^1$

素因数の和:5910

約数の個数: 48

約数和(自身を含む): 44044416

約数和(自身を除く): 23666751

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5881, 17643, 29405, 41167, 52929, 64691, 88215, 123501, 194073, 205835, 264645, 323455, 370503, 452837, 582219, 617505, 970365, 1358511, 1852515, 2264185, 2911095, 4075533, 6792555, 20377665]

約数ペア:

[(1, 20377665), (3, 6792555), (5, 4075533), (7, 2911095), (9, 2264185), (11, 1852515), (15, 1358511), (21, 970365), (33, 617505), (35, 582219), (45, 452837), (55, 370503), (63, 323455), (77, 264645), (99, 205835), (105, 194073), (165, 123501), (231, 88215), (315, 64691), (385, 52929), (495, 41167), (693, 29405), (1155, 17643), (3465, 5881)]