217440574

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 394740864

約数和(自身を除く): 177300290

約数列:

[1, 2, 13, 17, 23, 26, 34, 46, 73, 146, 221, 293, 299, 391, 442, 586, 598, 782, 949, 1241, 1679, 1898, 2482, 3358, 3809, 4981, 5083, 6739, 7618, 9962, 10166, 13478, 16133, 21389, 21827, 28543, 32266, 42778, 43654, 57086, 64753, 87607, 114563, 129506, 175214, 229126, 278057, 363613, 371059, 491947, 556114, 727226, 742118, 983894, 1489319, 2978638, 4726969, 6395311, 8363099, 9453938, 12790622, 16726198, 108720287, 217440574]

約数ペア:

[(1, 217440574), (2, 108720287), (13, 16726198), (17, 12790622), (23, 9453938), (26, 8363099), (34, 6395311), (46, 4726969), (73, 2978638), (146, 1489319), (221, 983894), (293, 742118), (299, 727226), (391, 556114), (442, 491947), (586, 371059), (598, 363613), (782, 278057), (949, 229126), (1241, 175214), (1679, 129506), (1898, 114563), (2482, 87607), (3358, 64753), (3809, 57086), (4981, 43654), (5083, 42778), (6739, 32266), (7618, 28543), (9962, 21827), (10166, 21389), (13478, 16133)]