21385105

素因数分解:

$5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{6299}}^1$

素因数の和:6408

約数の個数: 16

約数和(自身を含む): 29635200

約数和(自身を除く): 8250095

約数列:

[1, 5, 7, 35, 97, 485, 679, 3395, 6299, 31495, 44093, 220465, 611003, 3055015, 4277021, 21385105]

約数ペア:

[(1, 21385105), (5, 4277021), (7, 3055015), (35, 611003), (97, 220465), (485, 44093), (679, 31495), (3395, 6299)]