21164913

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4363}}^1$

素因数の和:4394

約数の個数: 36

約数和(自身を含む): 38804688

約数和(自身を除く): 17639775

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4363, 4851, 13089, 30541, 39267, 47993, 91623, 143979, 213787, 274869, 335951, 431937, 641361, 1007853, 1924083, 2351657, 3023559, 7054971, 21164913]

約数ペア:

[(1, 21164913), (3, 7054971), (7, 3023559), (9, 2351657), (11, 1924083), (21, 1007853), (33, 641361), (49, 431937), (63, 335951), (77, 274869), (99, 213787), (147, 143979), (231, 91623), (441, 47993), (539, 39267), (693, 30541), (1617, 13089), (4363, 4851)]