20783448

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:206

約数の個数: 144

約数和(自身を含む): 67490280

約数和(自身を除く): 46706832

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 43, 49, 56, 63, 72, 84, 86, 98, 126, 129, 137, 147, 168, 172, 196, 252, 258, 274, 294, 301, 344, 387, 392, 411, 441, 504, 516, 548, 588, 602, 774, 822, 882, 903, 959, 1032, 1096, 1176, 1204, 1233, 1548, 1644, 1764, 1806, 1918, 2107, 2408, 2466, 2709, 2877, 3096, 3288, 3528, 3612, 3836, 4214, 4932, 5418, 5754, 5891, 6321, 6713, 7224, 7672, 8428, 8631, 9864, 10836, 11508, 11782, 12642, 13426, 16856, 17262, 17673, 18963, 20139, 21672, 23016, 23564, 25284, 26852, 34524, 35346, 37926, 40278, 41237, 47128, 50568, 53019, 53704, 60417, 69048, 70692, 75852, 80556, 82474, 106038, 120834, 123711, 141384, 151704, 161112, 164948, 212076, 241668, 247422, 288659, 329896, 371133, 424152, 483336, 494844, 577318, 742266, 865977, 989688, 1154636, 1484532, 1731954, 2309272, 2597931, 2969064, 3463908, 5195862, 6927816, 10391724, 20783448]

約数ペア:

[(1, 20783448), (2, 10391724), (3, 6927816), (4, 5195862), (6, 3463908), (7, 2969064), (8, 2597931), (9, 2309272), (12, 1731954), (14, 1484532), (18, 1154636), (21, 989688), (24, 865977), (28, 742266), (36, 577318), (42, 494844), (43, 483336), (49, 424152), (56, 371133), (63, 329896), (72, 288659), (84, 247422), (86, 241668), (98, 212076), (126, 164948), (129, 161112), (137, 151704), (147, 141384), (168, 123711), (172, 120834), (196, 106038), (252, 82474), (258, 80556), (274, 75852), (294, 70692), (301, 69048), (344, 60417), (387, 53704), (392, 53019), (411, 50568), (441, 47128), (504, 41237), (516, 40278), (548, 37926), (588, 35346), (602, 34524), (774, 26852), (822, 25284), (882, 23564), (903, 23016), (959, 21672), (1032, 20139), (1096, 18963), (1176, 17673), (1204, 17262), (1233, 16856), (1548, 13426), (1644, 12642), (1764, 11782), (1806, 11508), (1918, 10836), (2107, 9864), (2408, 8631), (2466, 8428), (2709, 7672), (2877, 7224), (3096, 6713), (3288, 6321), (3528, 5891), (3612, 5754), (3836, 5418), (4214, 4932)]