20884842

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:296

約数の個数: 72

約数和(自身を含む): 51123072

約数和(自身を除く): 30238230

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 43, 66, 86, 99, 121, 129, 198, 223, 242, 258, 363, 387, 446, 473, 669, 726, 774, 946, 1089, 1338, 1419, 2007, 2178, 2453, 2838, 4014, 4257, 4906, 5203, 7359, 8514, 9589, 10406, 14718, 15609, 19178, 22077, 26983, 28767, 31218, 44154, 46827, 53966, 57534, 80949, 86301, 93654, 105479, 161898, 172602, 210958, 242847, 316437, 485694, 632874, 949311, 1160269, 1898622, 2320538, 3480807, 6961614, 10442421, 20884842]

約数ペア:

[(1, 20884842), (2, 10442421), (3, 6961614), (6, 3480807), (9, 2320538), (11, 1898622), (18, 1160269), (22, 949311), (33, 632874), (43, 485694), (66, 316437), (86, 242847), (99, 210958), (121, 172602), (129, 161898), (198, 105479), (223, 93654), (242, 86301), (258, 80949), (363, 57534), (387, 53966), (446, 46827), (473, 44154), (669, 31218), (726, 28767), (774, 26983), (946, 22077), (1089, 19178), (1338, 15609), (1419, 14718), (2007, 10406), (2178, 9589), (2453, 8514), (2838, 7359), (4014, 5203), (4257, 4906)]