21493639869

素因数分解:

$3^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{191827}}^1$

素因数の和:191886

約数の個数: 32

約数和(自身を含む): 32871646080

約数和(自身を除く): 11378006211

約数列:

[1, 3, 13, 17, 39, 51, 169, 221, 507, 663, 2197, 2873, 6591, 8619, 37349, 112047, 191827, 575481, 2493751, 3261059, 7481253, 9783177, 32418763, 42393767, 97256289, 127181301, 421443919, 551118971, 1264331757, 1653356913, 7164546623, 21493639869]

約数ペア:

[(1, 21493639869), (3, 7164546623), (13, 1653356913), (17, 1264331757), (39, 551118971), (51, 421443919), (169, 127181301), (221, 97256289), (507, 42393767), (663, 32418763), (2197, 9783177), (2873, 7481253), (6591, 3261059), (8619, 2493751), (37349, 575481), (112047, 191827)]