28839321

素因数分解:

$3^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2677}}^1$

素因数の和:2715

約数の個数: 40

約数和(自身を含む): 51846080

約数和(自身を除く): 23006759

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 81, 133, 171, 189, 399, 513, 567, 1197, 1539, 2677, 3591, 8031, 10773, 18739, 24093, 50863, 56217, 72279, 152589, 168651, 216837, 356041, 457767, 505953, 1068123, 1373301, 1517859, 3204369, 4119903, 9613107, 28839321]

約数ペア:

[(1, 28839321), (3, 9613107), (7, 4119903), (9, 3204369), (19, 1517859), (21, 1373301), (27, 1068123), (57, 505953), (63, 457767), (81, 356041), (133, 216837), (171, 168651), (189, 152589), (399, 72279), (513, 56217), (567, 50863), (1197, 24093), (1539, 18739), (2677, 10773), (3591, 8031)]