21552783

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2843}}^1$

素因数の和:2891

約数の個数: 24

約数和(自身を含む): 34674048

約数和(自身を除く): 13121265

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 2843, 7581, 8529, 19901, 54017, 59703, 162051, 378119, 1026323, 1134357, 3078969, 7184261, 21552783]

約数ペア:

[(1, 21552783), (3, 7184261), (7, 3078969), (19, 1134357), (21, 1026323), (57, 378119), (133, 162051), (361, 59703), (399, 54017), (1083, 19901), (2527, 8529), (2843, 7581)]