17816841

素因数分解:

$3^4\times 7^2\times {\mathrm{67}}^2$

素因数の和:160

約数の個数: 45

約数和(自身を含む): 31429629

約数和(自身を除く): 13612788

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 67, 81, 147, 189, 201, 441, 469, 567, 603, 1323, 1407, 1809, 3283, 3969, 4221, 4489, 5427, 9849, 12663, 13467, 29547, 31423, 37989, 40401, 88641, 94269, 121203, 219961, 265923, 282807, 363609, 659883, 848421, 1979649, 2545263, 5938947, 17816841]

約数ペア:

[(1, 17816841), (3, 5938947), (7, 2545263), (9, 1979649), (21, 848421), (27, 659883), (49, 363609), (63, 282807), (67, 265923), (81, 219961), (147, 121203), (189, 94269), (201, 88641), (441, 40401), (469, 37989), (567, 31423), (603, 29547), (1323, 13467), (1407, 12663), (1809, 9849), (3283, 5427), (3969, 4489)]