13520997

素因数分解:

$3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1367}}^1$

素因数の和:1537

約数の個数: 24

約数和(自身を含む): 22478976

約数和(自身を除く): 8957979

約数列:

[1, 3, 7, 9, 21, 63, 157, 471, 1099, 1367, 1413, 3297, 4101, 9569, 9891, 12303, 28707, 86121, 214619, 643857, 1502333, 1931571, 4506999, 13520997]

約数ペア:

[(1, 13520997), (3, 4506999), (7, 1931571), (9, 1502333), (21, 643857), (63, 214619), (157, 86121), (471, 28707), (1099, 12303), (1367, 9891), (1413, 9569), (3297, 4101)]