21391101286

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1\times {\mathrm{17467}}^1$

素因数の和:17908

約数の個数: 32

約数和(自身を含む): 34008099840

約数和(自身を除く): 12616998554

約数列:

[1, 2, 23, 46, 79, 158, 337, 674, 1817, 3634, 7751, 15502, 17467, 26623, 34934, 53246, 401741, 612329, 803482, 1224658, 1379893, 2759786, 5886379, 11772758, 31737539, 63475078, 135386717, 270773434, 465023941, 930047882, 10695550643, 21391101286]

約数ペア:

[(1, 21391101286), (2, 10695550643), (23, 930047882), (46, 465023941), (79, 270773434), (158, 135386717), (337, 63475078), (674, 31737539), (1817, 11772758), (3634, 5886379), (7751, 2759786), (15502, 1379893), (17467, 1224658), (26623, 803482), (34934, 612329), (53246, 401741)]