20712069

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 36796032

約数和(自身を除く): 16083963

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 83, 119, 153, 233, 249, 357, 581, 699, 747, 1071, 1411, 1631, 1743, 2097, 3961, 4233, 4893, 5229, 9877, 11883, 12699, 14679, 19339, 27727, 29631, 35649, 58017, 83181, 88893, 135373, 174051, 249543, 328763, 406119, 986289, 1218357, 2301341, 2958867, 6904023, 20712069]

約数ペア:

[(1, 20712069), (3, 6904023), (7, 2958867), (9, 2301341), (17, 1218357), (21, 986289), (51, 406119), (63, 328763), (83, 249543), (119, 174051), (153, 135373), (233, 88893), (249, 83181), (357, 58017), (581, 35649), (699, 29631), (747, 27727), (1071, 19339), (1411, 14679), (1631, 12699), (1743, 11883), (2097, 9877), (3961, 5229), (4233, 4893)]