21446271

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4421}}^1$

素因数の和:4452

約数の個数: 36

約数和(自身を含む): 39320424

約数和(自身を除く): 17874153

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 147, 231, 441, 539, 693, 1617, 4421, 4851, 13263, 30947, 39789, 48631, 92841, 145893, 216629, 278523, 340417, 437679, 649887, 1021251, 1949661, 2382919, 3063753, 7148757, 21446271]

約数ペア:

[(1, 21446271), (3, 7148757), (7, 3063753), (9, 2382919), (11, 1949661), (21, 1021251), (33, 649887), (49, 437679), (63, 340417), (77, 278523), (99, 216629), (147, 145893), (231, 92841), (441, 48631), (539, 39789), (693, 30947), (1617, 13263), (4421, 4851)]