21080323

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{811}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 24554880

約数和(自身を除く): 3474557

約数列:

[1, 11, 17, 139, 187, 811, 1529, 2363, 8921, 13787, 25993, 112729, 151657, 1240019, 1916393, 21080323]

約数ペア:

[(1, 21080323), (11, 1916393), (17, 1240019), (139, 151657), (187, 112729), (811, 25993), (1529, 13787), (2363, 8921)]