20885928

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:207

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 43810392

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 71, 84, 102, 103, 119, 136, 142, 168, 204, 206, 213, 238, 284, 309, 357, 408, 412, 426, 476, 497, 568, 618, 714, 721, 824, 852, 952, 994, 1207, 1236, 1428, 1442, 1491, 1704, 1751, 1988, 2163, 2414, 2472, 2856, 2884, 2982, 3502, 3621, 3976, 4326, 4828, 5253, 5768, 5964, 7004, 7242, 7313, 8449, 8652, 9656, 10506, 11928, 12257, 14008, 14484, 14626, 16898, 17304, 21012, 21939, 24514, 25347, 28968, 29252, 33796, 36771, 42024, 43878, 49028, 50694, 51191, 58504, 67592, 73542, 87756, 98056, 101388, 102382, 124321, 147084, 153573, 175512, 202776, 204764, 248642, 294168, 307146, 372963, 409528, 497284, 614292, 745926, 870247, 994568, 1228584, 1491852, 1740494, 2610741, 2983704, 3480988, 5221482, 6961976, 10442964, 20885928]

約数ペア:

[(1, 20885928), (2, 10442964), (3, 6961976), (4, 5221482), (6, 3480988), (7, 2983704), (8, 2610741), (12, 1740494), (14, 1491852), (17, 1228584), (21, 994568), (24, 870247), (28, 745926), (34, 614292), (42, 497284), (51, 409528), (56, 372963), (68, 307146), (71, 294168), (84, 248642), (102, 204764), (103, 202776), (119, 175512), (136, 153573), (142, 147084), (168, 124321), (204, 102382), (206, 101388), (213, 98056), (238, 87756), (284, 73542), (309, 67592), (357, 58504), (408, 51191), (412, 50694), (426, 49028), (476, 43878), (497, 42024), (568, 36771), (618, 33796), (714, 29252), (721, 28968), (824, 25347), (852, 24514), (952, 21939), (994, 21012), (1207, 17304), (1236, 16898), (1428, 14626), (1442, 14484), (1491, 14008), (1704, 12257), (1751, 11928), (1988, 10506), (2163, 9656), (2414, 8652), (2472, 8449), (2856, 7313), (2884, 7242), (2982, 7004), (3502, 5964), (3621, 5768), (3976, 5253), (4326, 4828)]