21227655

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{353}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 36023040

約数和(自身を除く): 14795385

約数列:

[1, 3, 5, 15, 19, 57, 95, 211, 285, 353, 633, 1055, 1059, 1765, 3165, 4009, 5295, 6707, 12027, 20045, 20121, 33535, 60135, 74483, 100605, 223449, 372415, 1117245, 1415177, 4245531, 7075885, 21227655]

約数ペア:

[(1, 21227655), (3, 7075885), (5, 4245531), (15, 1415177), (19, 1117245), (57, 372415), (95, 223449), (211, 100605), (285, 74483), (353, 60135), (633, 33535), (1055, 20121), (1059, 20045), (1765, 12027), (3165, 6707), (4009, 5295)]