21118214911

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{277}}^1\times {\mathrm{491}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 22820802048

約数和(自身を除く): 1702587137

約数列:

[1, 23, 43, 157, 277, 491, 989, 3611, 6371, 6751, 11293, 11911, 21113, 43489, 77087, 136007, 155273, 273953, 485599, 1000247, 1773001, 1870027, 3128161, 3314741, 5848301, 21353099, 43010621, 76239043, 134510923, 491121277, 918183257, 21118214911]

約数ペア:

[(1, 21118214911), (23, 918183257), (43, 491121277), (157, 134510923), (277, 76239043), (491, 43010621), (989, 21353099), (3611, 5848301), (6371, 3314741), (6751, 3128161), (11293, 1870027), (11911, 1773001), (21113, 1000247), (43489, 485599), (77087, 273953), (136007, 155273)]