28710279

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:316

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 19093113

約数列:

[1, 3, 9, 13, 23, 39, 47, 69, 117, 141, 207, 227, 299, 423, 611, 681, 897, 1081, 1833, 2043, 2691, 2951, 3243, 5221, 5499, 8853, 9729, 10669, 14053, 15663, 26559, 32007, 42159, 46989, 67873, 96021, 126477, 138697, 203619, 245387, 416091, 610857, 736161, 1248273, 2208483, 3190031, 9570093, 28710279]

約数ペア:

[(1, 28710279), (3, 9570093), (9, 3190031), (13, 2208483), (23, 1248273), (39, 736161), (47, 610857), (69, 416091), (117, 245387), (141, 203619), (207, 138697), (227, 126477), (299, 96021), (423, 67873), (611, 46989), (681, 42159), (897, 32007), (1081, 26559), (1833, 15663), (2043, 14053), (2691, 10669), (2951, 9729), (3243, 8853), (5221, 5499)]