19923376

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 60

約数和(自身を含む): 43637832

約数和(自身を除く): 23714456

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 82, 88, 121, 164, 176, 242, 251, 328, 451, 484, 502, 656, 902, 968, 1004, 1804, 1936, 2008, 2761, 3608, 4016, 4961, 5522, 7216, 9922, 10291, 11044, 19844, 20582, 22088, 30371, 39688, 41164, 44176, 60742, 79376, 82328, 113201, 121484, 164656, 226402, 242968, 452804, 485936, 905608, 1245211, 1811216, 2490422, 4980844, 9961688, 19923376]

約数ペア:

[(1, 19923376), (2, 9961688), (4, 4980844), (8, 2490422), (11, 1811216), (16, 1245211), (22, 905608), (41, 485936), (44, 452804), (82, 242968), (88, 226402), (121, 164656), (164, 121484), (176, 113201), (242, 82328), (251, 79376), (328, 60742), (451, 44176), (484, 41164), (502, 39688), (656, 30371), (902, 22088), (968, 20582), (1004, 19844), (1804, 11044), (1936, 10291), (2008, 9922), (2761, 7216), (3608, 5522), (4016, 4961)]