18845073

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12604527

約数列:

[1, 3, 9, 13, 23, 39, 47, 69, 117, 141, 149, 207, 299, 423, 447, 611, 897, 1081, 1341, 1833, 1937, 2691, 3243, 3427, 5499, 5811, 7003, 9729, 10281, 14053, 17433, 21009, 30843, 42159, 44551, 63027, 91039, 126477, 133653, 161069, 273117, 400959, 483207, 819351, 1449621, 2093897, 6281691, 18845073]

約数ペア:

[(1, 18845073), (3, 6281691), (9, 2093897), (13, 1449621), (23, 819351), (39, 483207), (47, 400959), (69, 273117), (117, 161069), (141, 133653), (149, 126477), (207, 91039), (299, 63027), (423, 44551), (447, 42159), (611, 30843), (897, 21009), (1081, 17433), (1341, 14053), (1833, 10281), (1937, 9729), (2691, 7003), (3243, 5811), (3427, 5499)]