21276013

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1451}}^1$

素因数の和:1536

約数の個数: 16

約数和(自身を含む): 24532992

約数和(自身を除く): 3256979

約数列:

[1, 11, 31, 43, 341, 473, 1333, 1451, 14663, 15961, 44981, 62393, 494791, 686323, 1934183, 21276013]

約数ペア:

[(1, 21276013), (11, 1934183), (31, 686323), (43, 494791), (341, 62393), (473, 44981), (1333, 15961), (1451, 14663)]