20866648

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4019}}^1$

素因数の和:4095

約数の個数: 32

約数和(自身を含む): 43416000

約数和(自身を除く): 22549352

約数列:

[1, 2, 4, 8, 11, 22, 44, 59, 88, 118, 236, 472, 649, 1298, 2596, 4019, 5192, 8038, 16076, 32152, 44209, 88418, 176836, 237121, 353672, 474242, 948484, 1896968, 2608331, 5216662, 10433324, 20866648]

約数ペア:

[(1, 20866648), (2, 10433324), (4, 5216662), (8, 2608331), (11, 1896968), (22, 948484), (44, 474242), (59, 353672), (88, 237121), (118, 176836), (236, 88418), (472, 44209), (649, 32152), (1298, 16076), (2596, 8038), (4019, 5192)]