21860997

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{7027}}^1$

素因数の和:7108

約数の個数: 16

約数和(自身を含む): 31372992

約数和(自身を除く): 9511995

約数列:

[1, 3, 17, 51, 61, 183, 1037, 3111, 7027, 21081, 119459, 358377, 428647, 1285941, 7286999, 21860997]

約数ペア:

[(1, 21860997), (3, 7286999), (17, 1285941), (51, 428647), (61, 358377), (183, 119459), (1037, 21081), (3111, 7027)]