21842751

素因数分解:

$3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{10723}}^1$

素因数の和:10830

約数の個数: 16

約数和(自身を含む): 33630464

約数和(自身を除く): 11787713

約数列:

[1, 3, 7, 21, 97, 291, 679, 2037, 10723, 32169, 75061, 225183, 1040131, 3120393, 7280917, 21842751]

約数ペア:

[(1, 21842751), (3, 7280917), (7, 3120393), (21, 1040131), (97, 225183), (291, 75061), (679, 32169), (2037, 10723)]