21311015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{9011}}^1$

素因数の和:9070

約数の個数: 16

約数和(自身を含む): 28550016

約数和(自身を除く): 7239001

約数列:

[1, 5, 11, 43, 55, 215, 473, 2365, 9011, 45055, 99121, 387473, 495605, 1937365, 4262203, 21311015]

約数ペア:

[(1, 21311015), (5, 4262203), (11, 1937365), (43, 495605), (55, 387473), (215, 99121), (473, 45055), (2365, 9011)]