21971955

素因数分解:

$3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{15101}}^1$

素因数の和:15206

約数の個数: 16

約数和(自身を含む): 35519904

約数和(自身を除く): 13547949

約数列:

[1, 3, 5, 15, 97, 291, 485, 1455, 15101, 45303, 75505, 226515, 1464797, 4394391, 7323985, 21971955]

約数ペア:

[(1, 21971955), (3, 7323985), (5, 4394391), (15, 1464797), (97, 226515), (291, 75505), (485, 45303), (1455, 15101)]