17971785

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1046

約数の個数: 48

約数和(自身を含む): 34664448

約数和(自身を除く): 16692663

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 991, 1209, 1395, 2015, 2973, 3627, 4955, 6045, 8919, 12883, 14865, 18135, 30721, 38649, 44595, 64415, 92163, 115947, 153605, 193245, 276489, 399373, 460815, 579735, 1198119, 1382445, 1996865, 3594357, 5990595, 17971785]

約数ペア:

[(1, 17971785), (3, 5990595), (5, 3594357), (9, 1996865), (13, 1382445), (15, 1198119), (31, 579735), (39, 460815), (45, 399373), (65, 276489), (93, 193245), (117, 153605), (155, 115947), (195, 92163), (279, 64415), (403, 44595), (465, 38649), (585, 30721), (991, 18135), (1209, 14865), (1395, 12883), (2015, 8919), (2973, 6045), (3627, 4955)]