28272951

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{1051}}^1$

素因数の和:1132

約数の個数: 36

約数和(自身を含む): 48330984

約数和(自身を除く): 20058033

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1051, 1281, 2989, 3153, 3843, 7357, 8967, 9459, 22071, 26901, 51499, 64111, 66213, 154497, 192333, 448777, 463491, 576999, 1346331, 3141439, 4038993, 9424317, 28272951]

約数ペア:

[(1, 28272951), (3, 9424317), (7, 4038993), (9, 3141439), (21, 1346331), (49, 576999), (61, 463491), (63, 448777), (147, 192333), (183, 154497), (427, 66213), (441, 64111), (549, 51499), (1051, 26901), (1281, 22071), (2989, 9459), (3153, 8967), (3843, 7357)]