21885549

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54851}}^1$

素因数の和:54880

約数の個数: 16

約数和(自身を含む): 35105280

約数和(自身を除く): 13219731

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54851, 164553, 383957, 1042169, 1151871, 3126507, 7295183, 21885549]

約数ペア:

[(1, 21885549), (3, 7295183), (7, 3126507), (19, 1151871), (21, 1042169), (57, 383957), (133, 164553), (399, 54851)]