21203595

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{811}}^1$

素因数の和:912

約数の個数: 48

約数和(自身を含む): 42561792

約数和(自身を除く): 21358197

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 83, 105, 249, 315, 415, 581, 747, 811, 1245, 1743, 2433, 2905, 3735, 4055, 5229, 5677, 7299, 8715, 12165, 17031, 26145, 28385, 36495, 51093, 67313, 85155, 201939, 255465, 336565, 471191, 605817, 1009695, 1413573, 2355955, 3029085, 4240719, 7067865, 21203595]

約数ペア:

[(1, 21203595), (3, 7067865), (5, 4240719), (7, 3029085), (9, 2355955), (15, 1413573), (21, 1009695), (35, 605817), (45, 471191), (63, 336565), (83, 255465), (105, 201939), (249, 85155), (315, 67313), (415, 51093), (581, 36495), (747, 28385), (811, 26145), (1245, 17031), (1743, 12165), (2433, 8715), (2905, 7299), (3735, 5677), (4055, 5229)]