221619981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{641}}^1\times {\mathrm{10477}}^1$

素因数の和:11132

約数の個数: 16

約数和(自身を含む): 322890048

約数和(自身を除く): 101270067

約数列:

[1, 3, 11, 33, 641, 1923, 7051, 10477, 21153, 31431, 115247, 345741, 6715757, 20147271, 73873327, 221619981]

約数ペア:

[(1, 221619981), (3, 73873327), (11, 20147271), (33, 6715757), (641, 345741), (1923, 115247), (7051, 31431), (10477, 21153)]