19721328

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:974

約数の個数: 80

約数和(自身を含む): 56996352

約数和(自身を除く): 37275024

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 41, 44, 48, 66, 82, 88, 123, 132, 164, 176, 246, 264, 328, 451, 492, 528, 656, 902, 911, 984, 1353, 1804, 1822, 1968, 2706, 2733, 3608, 3644, 5412, 5466, 7216, 7288, 10021, 10824, 10932, 14576, 20042, 21648, 21864, 30063, 37351, 40084, 43728, 60126, 74702, 80168, 112053, 120252, 149404, 160336, 224106, 240504, 298808, 410861, 448212, 481008, 597616, 821722, 896424, 1232583, 1643444, 1792848, 2465166, 3286888, 4930332, 6573776, 9860664, 19721328]

約数ペア:

[(1, 19721328), (2, 9860664), (3, 6573776), (4, 4930332), (6, 3286888), (8, 2465166), (11, 1792848), (12, 1643444), (16, 1232583), (22, 896424), (24, 821722), (33, 597616), (41, 481008), (44, 448212), (48, 410861), (66, 298808), (82, 240504), (88, 224106), (123, 160336), (132, 149404), (164, 120252), (176, 112053), (246, 80168), (264, 74702), (328, 60126), (451, 43728), (492, 40084), (528, 37351), (656, 30063), (902, 21864), (911, 21648), (984, 20042), (1353, 14576), (1804, 10932), (1822, 10824), (1968, 10021), (2706, 7288), (2733, 7216), (3608, 5466), (3644, 5412)]