21145839

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{4481}}^1$

素因数の和:4519

約数の個数: 24

約数和(自身を含む): 33381936

約数和(自身を除く): 12236097

約数列:

[1, 3, 11, 13, 33, 39, 121, 143, 363, 429, 1573, 4481, 4719, 13443, 49291, 58253, 147873, 174759, 542201, 640783, 1626603, 1922349, 7048613, 21145839]

約数ペア:

[(1, 21145839), (3, 7048613), (11, 1922349), (13, 1626603), (33, 640783), (39, 542201), (121, 174759), (143, 147873), (363, 58253), (429, 49291), (1573, 13443), (4481, 4719)]