21006015

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{60887}}^1$

素因数の和:60918

約数の個数: 16

約数和(自身を含む): 35071488

約数和(自身を除く): 14065473

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 60887, 182661, 304435, 913305, 1400401, 4201203, 7002005, 21006015]

約数ペア:

[(1, 21006015), (3, 7002005), (5, 4201203), (15, 1400401), (23, 913305), (69, 304435), (115, 182661), (345, 60887)]