209212227

素因数分解:

$3^4\times 7^1\times {\mathrm{197}}^1\times {\mathrm{1873}}^1$

素因数の和:2089

約数の個数: 40

約数和(自身を含む): 359178336

約数和(自身を除く): 149966109

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 197, 567, 591, 1379, 1773, 1873, 4137, 5319, 5619, 12411, 13111, 15957, 16857, 37233, 39333, 50571, 111699, 117999, 151713, 353997, 368981, 1061991, 1106943, 2582867, 3320829, 7748601, 9962487, 23245803, 29887461, 69737409, 209212227]

約数ペア:

[(1, 209212227), (3, 69737409), (7, 29887461), (9, 23245803), (21, 9962487), (27, 7748601), (63, 3320829), (81, 2582867), (189, 1106943), (197, 1061991), (567, 368981), (591, 353997), (1379, 151713), (1773, 117999), (1873, 111699), (4137, 50571), (5319, 39333), (5619, 37233), (12411, 16857), (13111, 15957)]