21337785

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9677}}^1$

素因数の和:9702

約数の個数: 36

約数和(自身を含む): 43028388

約数和(自身を除く): 21690603

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9677, 29031, 48385, 67739, 87093, 145155, 203217, 338695, 435465, 474173, 609651, 1016085, 1422519, 2370865, 3048255, 4267557, 7112595, 21337785]

約数ペア:

[(1, 21337785), (3, 7112595), (5, 4267557), (7, 3048255), (9, 2370865), (15, 1422519), (21, 1016085), (35, 609651), (45, 474173), (49, 435465), (63, 338695), (105, 203217), (147, 145155), (245, 87093), (315, 67739), (441, 48385), (735, 29031), (2205, 9677)]