21950145

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{4099}}^1$

素因数の和:4134

約数の個数: 48

約数和(自身を含む): 46051200

約数和(自身を除く): 24101055

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 315, 357, 595, 765, 1071, 1785, 4099, 5355, 12297, 20495, 28693, 36891, 61485, 69683, 86079, 143465, 184455, 209049, 258237, 348415, 430395, 487781, 627147, 1045245, 1291185, 1463343, 2438905, 3135735, 4390029, 7316715, 21950145]

約数ペア:

[(1, 21950145), (3, 7316715), (5, 4390029), (7, 3135735), (9, 2438905), (15, 1463343), (17, 1291185), (21, 1045245), (35, 627147), (45, 487781), (51, 430395), (63, 348415), (85, 258237), (105, 209049), (119, 184455), (153, 143465), (255, 86079), (315, 69683), (357, 61485), (595, 36891), (765, 28693), (1071, 20495), (1785, 12297), (4099, 5355)]