21898107

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3511}}^1$

素因数の和:3541

約数の個数: 40

約数和(自身を含む): 40795392

約数和(自身を除く): 18897285

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 189, 231, 297, 567, 693, 891, 2079, 3511, 6237, 10533, 24577, 31599, 38621, 73731, 94797, 115863, 221193, 270347, 284391, 347589, 663579, 811041, 1042767, 1990737, 2433123, 3128301, 7299369, 21898107]

約数ペア:

[(1, 21898107), (3, 7299369), (7, 3128301), (9, 2433123), (11, 1990737), (21, 1042767), (27, 811041), (33, 663579), (63, 347589), (77, 284391), (81, 270347), (99, 221193), (189, 115863), (231, 94797), (297, 73731), (567, 38621), (693, 31599), (891, 24577), (2079, 10533), (3511, 6237)]