20747344

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{919}}^1$

素因数の和:1027

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22374896

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 83, 136, 166, 272, 332, 664, 919, 1328, 1411, 1838, 2822, 3676, 5644, 7352, 11288, 14704, 15623, 22576, 31246, 62492, 76277, 124984, 152554, 249968, 305108, 610216, 1220432, 1296709, 2593418, 5186836, 10373672, 20747344]

約数ペア:

[(1, 20747344), (2, 10373672), (4, 5186836), (8, 2593418), (16, 1296709), (17, 1220432), (34, 610216), (68, 305108), (83, 249968), (136, 152554), (166, 124984), (272, 76277), (332, 62492), (664, 31246), (919, 22576), (1328, 15623), (1411, 14704), (1838, 11288), (2822, 7352), (3676, 5644)]