21075156

素因数分解:

$2^2\times 3^2\times {\mathrm{149}}^1\times {\mathrm{3929}}^1$

素因数の和:4088

約数の個数: 36

約数和(自身を含む): 53644500

約数和(自身を除く): 32569344

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 149, 298, 447, 596, 894, 1341, 1788, 2682, 3929, 5364, 7858, 11787, 15716, 23574, 35361, 47148, 70722, 141444, 585421, 1170842, 1756263, 2341684, 3512526, 5268789, 7025052, 10537578, 21075156]

約数ペア:

[(1, 21075156), (2, 10537578), (3, 7025052), (4, 5268789), (6, 3512526), (9, 2341684), (12, 1756263), (18, 1170842), (36, 585421), (149, 141444), (298, 70722), (447, 47148), (596, 35361), (894, 23574), (1341, 15716), (1788, 11787), (2682, 7858), (3929, 5364)]