81426681

素因数分解:

$3^3\times 7^2\times {\mathrm{61547}}^1$

素因数の和:61570

約数の個数: 24

約数和(自身を含む): 140329440

約数和(自身を除く): 58902759

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 61547, 184641, 430829, 553923, 1292487, 1661769, 3015803, 3877461, 9047409, 11632383, 27142227, 81426681]

約数ペア:

[(1, 81426681), (3, 27142227), (7, 11632383), (9, 9047409), (21, 3877461), (27, 3015803), (49, 1661769), (63, 1292487), (147, 553923), (189, 430829), (441, 184641), (1323, 61547)]