21682557

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3943}}^1$

素因数の和:4009

約数の個数: 24

約数和(自身を含む): 34454784

約数和(自身を除く): 12772227

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3943, 5499, 11829, 35487, 51259, 153777, 185321, 461331, 555963, 1667889, 2409173, 7227519, 21682557]

約数ペア:

[(1, 21682557), (3, 7227519), (9, 2409173), (13, 1667889), (39, 555963), (47, 461331), (117, 185321), (141, 153777), (423, 51259), (611, 35487), (1833, 11829), (3943, 5499)]