28873215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1291}}^1$

素因数の和:1380

約数の個数: 48

約数和(自身を含む): 58046976

約数和(自身を除く): 29173761

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 105, 213, 315, 355, 497, 639, 1065, 1291, 1491, 2485, 3195, 3873, 4473, 6455, 7455, 9037, 11619, 19365, 22365, 27111, 45185, 58095, 81333, 91661, 135555, 274983, 406665, 458305, 641627, 824949, 1374915, 1924881, 3208135, 4124745, 5774643, 9624405, 28873215]

約数ペア:

[(1, 28873215), (3, 9624405), (5, 5774643), (7, 4124745), (9, 3208135), (15, 1924881), (21, 1374915), (35, 824949), (45, 641627), (63, 458305), (71, 406665), (105, 274983), (213, 135555), (315, 91661), (355, 81333), (497, 58095), (639, 45185), (1065, 27111), (1291, 22365), (1491, 19365), (2485, 11619), (3195, 9037), (3873, 7455), (4473, 6455)]