31118409

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25997}}^1$

素因数の和:26029

約数の個数: 24

約数和(自身を含む): 54075840

約数和(自身を除く): 22957431

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 25997, 77991, 181979, 233973, 493943, 545937, 1481829, 1637811, 3457601, 4445487, 10372803, 31118409]

約数ペア:

[(1, 31118409), (3, 10372803), (7, 4445487), (9, 3457601), (19, 1637811), (21, 1481829), (57, 545937), (63, 493943), (133, 233973), (171, 181979), (399, 77991), (1197, 25997)]