21131514

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{31729}}^1$

素因数の和:31774

約数の個数: 24

約数和(自身を含む): 47023860

約数和(自身を除く): 25892346

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 31729, 63458, 95187, 190374, 285561, 571122, 1173973, 2347946, 3521919, 7043838, 10565757, 21131514]

約数ペア:

[(1, 21131514), (2, 10565757), (3, 7043838), (6, 3521919), (9, 2347946), (18, 1173973), (37, 571122), (74, 285561), (111, 190374), (222, 95187), (333, 63458), (666, 31729)]