28078239

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{953}}^1$

素因数の和:1047

約数の個数: 32

約数和(自身を含む): 45425664

約数和(自身を除く): 17347425

約数列:

[1, 3, 7, 21, 23, 61, 69, 161, 183, 427, 483, 953, 1281, 1403, 2859, 4209, 6671, 9821, 20013, 21919, 29463, 58133, 65757, 153433, 174399, 406931, 460299, 1220793, 1337059, 4011177, 9359413, 28078239]

約数ペア:

[(1, 28078239), (3, 9359413), (7, 4011177), (21, 1337059), (23, 1220793), (61, 460299), (69, 406931), (161, 174399), (183, 153433), (427, 65757), (483, 58133), (953, 29463), (1281, 21919), (1403, 20013), (2859, 9821), (4209, 6671)]