21931287945

素因数分解:

$3^1\times 5^1\times 7^3\times {\mathrm{1153}}^1\times {\mathrm{3697}}^1$

素因数の和:4879

約数の個数: 64

約数和(自身を含む): 40967923200

約数和(自身を除く): 19036635255

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 343, 735, 1029, 1153, 1715, 3459, 3697, 5145, 5765, 8071, 11091, 17295, 18485, 24213, 25879, 40355, 55455, 56497, 77637, 121065, 129395, 169491, 181153, 282485, 388185, 395479, 543459, 847455, 905765, 1186437, 1268071, 1977395, 2717295, 3804213, 4262641, 5932185, 6340355, 12787923, 19021065, 21313205, 29838487, 63939615, 89515461, 149192435, 208869409, 447577305, 626608227, 1044347045, 1462085863, 3133041135, 4386257589, 7310429315, 21931287945]

約数ペア:

[(1, 21931287945), (3, 7310429315), (5, 4386257589), (7, 3133041135), (15, 1462085863), (21, 1044347045), (35, 626608227), (49, 447577305), (105, 208869409), (147, 149192435), (245, 89515461), (343, 63939615), (735, 29838487), (1029, 21313205), (1153, 19021065), (1715, 12787923), (3459, 6340355), (3697, 5932185), (5145, 4262641), (5765, 3804213), (8071, 2717295), (11091, 1977395), (17295, 1268071), (18485, 1186437), (24213, 905765), (25879, 847455), (40355, 543459), (55455, 395479), (56497, 388185), (77637, 282485), (121065, 181153), (129395, 169491)]