20746188

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{311}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 56216160

約数和(自身を除く): 35469972

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 109, 153, 204, 218, 306, 311, 327, 436, 612, 622, 654, 933, 981, 1244, 1308, 1853, 1866, 1962, 2799, 3706, 3732, 3924, 5287, 5559, 5598, 7412, 10574, 11118, 11196, 15861, 16677, 21148, 22236, 31722, 33354, 33899, 47583, 63444, 66708, 67798, 95166, 101697, 135596, 190332, 203394, 305091, 406788, 576283, 610182, 1152566, 1220364, 1728849, 2305132, 3457698, 5186547, 6915396, 10373094, 20746188]

約数ペア:

[(1, 20746188), (2, 10373094), (3, 6915396), (4, 5186547), (6, 3457698), (9, 2305132), (12, 1728849), (17, 1220364), (18, 1152566), (34, 610182), (36, 576283), (51, 406788), (68, 305091), (102, 203394), (109, 190332), (153, 135596), (204, 101697), (218, 95166), (306, 67798), (311, 66708), (327, 63444), (436, 47583), (612, 33899), (622, 33354), (654, 31722), (933, 22236), (981, 21148), (1244, 16677), (1308, 15861), (1853, 11196), (1866, 11118), (1962, 10574), (2799, 7412), (3706, 5598), (3732, 5559), (3924, 5287)]