28978677

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{863}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 52835328

約数和(自身を除く): 23856651

約数列:

[1, 3, 7, 9, 13, 21, 39, 41, 63, 91, 117, 123, 273, 287, 369, 533, 819, 861, 863, 1599, 2583, 2589, 3731, 4797, 6041, 7767, 11193, 11219, 18123, 33579, 33657, 35383, 54369, 78533, 100971, 106149, 235599, 247681, 318447, 459979, 706797, 743043, 1379937, 2229129, 3219853, 4139811, 9659559, 28978677]

約数ペア:

[(1, 28978677), (3, 9659559), (7, 4139811), (9, 3219853), (13, 2229129), (21, 1379937), (39, 743043), (41, 706797), (63, 459979), (91, 318447), (117, 247681), (123, 235599), (273, 106149), (287, 100971), (369, 78533), (533, 54369), (819, 35383), (861, 33657), (863, 33579), (1599, 18123), (2583, 11219), (2589, 11193), (3731, 7767), (4797, 6041)]