21073041

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:443

約数の個数: 40

約数和(自身を含む): 34952544

約数和(自身を除く): 13879503

約数列:

[1, 3, 9, 11, 27, 33, 67, 81, 99, 201, 297, 353, 603, 737, 891, 1059, 1809, 2211, 3177, 3883, 5427, 6633, 9531, 11649, 19899, 23651, 28593, 34947, 59697, 70953, 104841, 212859, 260161, 314523, 638577, 780483, 1915731, 2341449, 7024347, 21073041]

約数ペア:

[(1, 21073041), (3, 7024347), (9, 2341449), (11, 1915731), (27, 780483), (33, 638577), (67, 314523), (81, 260161), (99, 212859), (201, 104841), (297, 70953), (353, 59697), (603, 34947), (737, 28593), (891, 23651), (1059, 19899), (1809, 11649), (2211, 9531), (3177, 6633), (3883, 5427)]