28702107

素因数分解:

$3^4\times 7^1\times {\mathrm{223}}^1\times {\mathrm{227}}^1$

素因数の和:469

約数の個数: 40

約数和(自身を含む): 49437696

約数和(自身を除く): 20735589

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 223, 227, 567, 669, 681, 1561, 1589, 2007, 2043, 4683, 4767, 6021, 6129, 14049, 14301, 18063, 18387, 42147, 42903, 50621, 126441, 128709, 151863, 354347, 455589, 1063041, 1366767, 3189123, 4100301, 9567369, 28702107]

約数ペア:

[(1, 28702107), (3, 9567369), (7, 4100301), (9, 3189123), (21, 1366767), (27, 1063041), (63, 455589), (81, 354347), (189, 151863), (223, 128709), (227, 126441), (567, 50621), (669, 42903), (681, 42147), (1561, 18387), (1589, 18063), (2007, 14301), (2043, 14049), (4683, 6129), (4767, 6021)]