19947549

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{5737}}^1$

素因数の和:5820

約数の個数: 16

約数和(自身を含む): 28460480

約数和(自身を除く): 8512931

約数列:

[1, 3, 19, 57, 61, 183, 1159, 3477, 5737, 17211, 109003, 327009, 349957, 1049871, 6649183, 19947549]

約数ペア:

[(1, 19947549), (3, 6649183), (19, 1049871), (57, 349957), (61, 327009), (183, 109003), (1159, 17211), (3477, 5737)]