28317681

素因数分解:

$3^4\times 7^1\times {\mathrm{49943}}^1$

素因数の和:49962

約数の個数: 20

約数和(自身を含む): 48345792

約数和(自身を除く): 20028111

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 49943, 149829, 349601, 449487, 1048803, 1348461, 3146409, 4045383, 9439227, 28317681]

約数ペア:

[(1, 28317681), (3, 9439227), (7, 4045383), (9, 3146409), (21, 1348461), (27, 1048803), (63, 449487), (81, 349601), (189, 149829), (567, 49943)]