21270951

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60601}}^1$

素因数の和:60623

約数の個数: 16

約数和(自身を含む): 33937120

約数和(自身を除く): 12666169

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60601, 181803, 545409, 787813, 1636227, 2363439, 7090317, 21270951]

約数ペア:

[(1, 21270951), (3, 7090317), (9, 2363439), (13, 1636227), (27, 787813), (39, 545409), (117, 181803), (351, 60601)]