278364681

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{28879}}^1$

素因数の和:28915

約数の個数: 40

約数和(自身を含む): 503205120

約数和(自身を除く): 224840439

約数列:

[1, 3, 7, 9, 17, 21, 27, 51, 63, 81, 119, 153, 189, 357, 459, 567, 1071, 1377, 3213, 9639, 28879, 86637, 202153, 259911, 490943, 606459, 779733, 1472829, 1819377, 2339199, 3436601, 4418487, 5458131, 10309803, 13255461, 16374393, 30929409, 39766383, 92788227, 278364681]

約数ペア:

[(1, 278364681), (3, 92788227), (7, 39766383), (9, 30929409), (17, 16374393), (21, 13255461), (27, 10309803), (51, 5458131), (63, 4418487), (81, 3436601), (119, 2339199), (153, 1819377), (189, 1472829), (357, 779733), (459, 606459), (567, 490943), (1071, 259911), (1377, 202153), (3213, 86637), (9639, 28879)]