21696535

素因数分解:

$5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{8731}}^1$

素因数の和:8814

約数の個数: 16

約数和(自身を含む): 30177792

約数和(自身を除く): 8481257

約数列:

[1, 5, 7, 35, 71, 355, 497, 2485, 8731, 43655, 61117, 305585, 619901, 3099505, 4339307, 21696535]

約数ペア:

[(1, 21696535), (5, 4339307), (7, 3099505), (35, 619901), (71, 305585), (355, 61117), (497, 43655), (2485, 8731)]