21066955

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{46301}}^1$

素因数の和:46326

約数の個数: 16

約数和(自身を含む): 31114944

約数和(自身を除く): 10047989

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 46301, 231505, 324107, 601913, 1620535, 3009565, 4213391, 21066955]

約数ペア:

[(1, 21066955), (5, 4213391), (7, 3009565), (13, 1620535), (35, 601913), (65, 324107), (91, 231505), (455, 46301)]