30881403

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{25799}}^1$

素因数の和:25831

約数の個数: 24

約数和(自身を含む): 53664000

約数和(自身を除く): 22782597

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 25799, 77397, 180593, 232191, 490181, 541779, 1470543, 1625337, 3431267, 4411629, 10293801, 30881403]

約数ペア:

[(1, 30881403), (3, 10293801), (7, 4411629), (9, 3431267), (19, 1625337), (21, 1470543), (57, 541779), (63, 490181), (133, 232191), (171, 180593), (399, 77397), (1197, 25799)]