20912624

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{449}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 42184800

約数和(自身を除く): 21272176

約数列:

[1, 2, 4, 8, 16, 41, 71, 82, 142, 164, 284, 328, 449, 568, 656, 898, 1136, 1796, 2911, 3592, 5822, 7184, 11644, 18409, 23288, 31879, 36818, 46576, 63758, 73636, 127516, 147272, 255032, 294544, 510064, 1307039, 2614078, 5228156, 10456312, 20912624]

約数ペア:

[(1, 20912624), (2, 10456312), (4, 5228156), (8, 2614078), (16, 1307039), (41, 510064), (71, 294544), (82, 255032), (142, 147272), (164, 127516), (284, 73636), (328, 63758), (449, 46576), (568, 36818), (656, 31879), (898, 23288), (1136, 18409), (1796, 11644), (2911, 7184), (3592, 5822)]