7281381681

素因数分解:

$3^4\times 7^1\times {\mathrm{12841943}}^1$

素因数の和:12841962

約数の個数: 20

約数和(自身を含む): 12431001792

約数和(自身を除く): 5149620111

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 12841943, 38525829, 89893601, 115577487, 269680803, 346732461, 809042409, 1040197383, 2427127227, 7281381681]

約数ペア:

[(1, 7281381681), (3, 2427127227), (7, 1040197383), (9, 809042409), (21, 346732461), (27, 269680803), (63, 115577487), (81, 89893601), (189, 38525829), (567, 12841943)]