21901212

素因数分解:

$2^2\times 3^3\times {\mathrm{149}}^1\times {\mathrm{1361}}^1$

素因数の和:1523

約数の個数: 48

約数和(自身を含む): 57204000

約数和(自身を除く): 35302788

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 149, 298, 447, 596, 894, 1341, 1361, 1788, 2682, 2722, 4023, 4083, 5364, 5444, 8046, 8166, 12249, 16092, 16332, 24498, 36747, 48996, 73494, 146988, 202789, 405578, 608367, 811156, 1216734, 1825101, 2433468, 3650202, 5475303, 7300404, 10950606, 21901212]

約数ペア:

[(1, 21901212), (2, 10950606), (3, 7300404), (4, 5475303), (6, 3650202), (9, 2433468), (12, 1825101), (18, 1216734), (27, 811156), (36, 608367), (54, 405578), (108, 202789), (149, 146988), (298, 73494), (447, 48996), (596, 36747), (894, 24498), (1341, 16332), (1361, 16092), (1788, 12249), (2682, 8166), (2722, 8046), (4023, 5444), (4083, 5364)]