21236085

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1171}}^1$

素因数の和:1226

約数の個数: 48

約数和(自身を含む): 40954368

約数和(自身を除く): 19718283

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1171, 1209, 1395, 2015, 3513, 3627, 5855, 6045, 10539, 15223, 17565, 18135, 36301, 45669, 52695, 76115, 108903, 137007, 181505, 228345, 326709, 471913, 544515, 685035, 1415739, 1633545, 2359565, 4247217, 7078695, 21236085]

約数ペア:

[(1, 21236085), (3, 7078695), (5, 4247217), (9, 2359565), (13, 1633545), (15, 1415739), (31, 685035), (39, 544515), (45, 471913), (65, 326709), (93, 228345), (117, 181505), (155, 137007), (195, 108903), (279, 76115), (403, 52695), (465, 45669), (585, 36301), (1171, 18135), (1209, 17565), (1395, 15223), (2015, 10539), (3513, 6045), (3627, 5855)]