21622209

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1153}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 35450880

約数和(自身を除く): 13828671

約数列:

[1, 3, 7, 19, 21, 47, 57, 133, 141, 329, 399, 893, 987, 1153, 2679, 3459, 6251, 8071, 18753, 21907, 24213, 54191, 65721, 153349, 162573, 379337, 460047, 1029629, 1138011, 3088887, 7207403, 21622209]

約数ペア:

[(1, 21622209), (3, 7207403), (7, 3088887), (19, 1138011), (21, 1029629), (47, 460047), (57, 379337), (133, 162573), (141, 153349), (329, 65721), (399, 54191), (893, 24213), (987, 21907), (1153, 18753), (2679, 8071), (3459, 6251)]