74481981

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 128729088

約数和(自身を除く): 54247107

約数列:

[1, 3, 7, 17, 21, 23, 47, 51, 69, 119, 141, 161, 193, 329, 357, 391, 483, 579, 799, 987, 1081, 1173, 1351, 2397, 2737, 3243, 3281, 4053, 4439, 5593, 7567, 8211, 9071, 9843, 13317, 16779, 18377, 22701, 22967, 27213, 31073, 55131, 63497, 68901, 75463, 93219, 128639, 154207, 190491, 208633, 226389, 385917, 462621, 528241, 625899, 1079449, 1460431, 1584723, 3238347, 3546761, 4381293, 10640283, 24827327, 74481981]

約数ペア:

[(1, 74481981), (3, 24827327), (7, 10640283), (17, 4381293), (21, 3546761), (23, 3238347), (47, 1584723), (51, 1460431), (69, 1079449), (119, 625899), (141, 528241), (161, 462621), (193, 385917), (329, 226389), (357, 208633), (391, 190491), (483, 154207), (579, 128639), (799, 93219), (987, 75463), (1081, 68901), (1173, 63497), (1351, 55131), (2397, 31073), (2737, 27213), (3243, 22967), (3281, 22701), (4053, 18377), (4439, 16779), (5593, 13317), (7567, 9843), (8211, 9071)]