20990376

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1599

約数の個数: 96

約数和(自身を含む): 65707200

約数和(自身を除く): 44716824

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 17, 18, 22, 24, 33, 34, 36, 44, 51, 66, 68, 72, 88, 99, 102, 132, 136, 153, 187, 198, 204, 264, 306, 374, 396, 408, 561, 612, 748, 792, 1122, 1224, 1496, 1559, 1683, 2244, 3118, 3366, 4488, 4677, 6236, 6732, 9354, 12472, 13464, 14031, 17149, 18708, 26503, 28062, 34298, 37416, 51447, 53006, 56124, 68596, 79509, 102894, 106012, 112248, 137192, 154341, 159018, 205788, 212024, 238527, 291533, 308682, 318036, 411576, 477054, 583066, 617364, 636072, 874599, 954108, 1166132, 1234728, 1749198, 1908216, 2332264, 2623797, 3498396, 5247594, 6996792, 10495188, 20990376]

約数ペア:

[(1, 20990376), (2, 10495188), (3, 6996792), (4, 5247594), (6, 3498396), (8, 2623797), (9, 2332264), (11, 1908216), (12, 1749198), (17, 1234728), (18, 1166132), (22, 954108), (24, 874599), (33, 636072), (34, 617364), (36, 583066), (44, 477054), (51, 411576), (66, 318036), (68, 308682), (72, 291533), (88, 238527), (99, 212024), (102, 205788), (132, 159018), (136, 154341), (153, 137192), (187, 112248), (198, 106012), (204, 102894), (264, 79509), (306, 68596), (374, 56124), (396, 53006), (408, 51447), (561, 37416), (612, 34298), (748, 28062), (792, 26503), (1122, 18708), (1224, 17149), (1496, 14031), (1559, 13464), (1683, 12472), (2244, 9354), (3118, 6732), (3366, 6236), (4488, 4677)]