28192409

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 36990720

約数和(自身を除く): 8798311

約数列:

[1, 7, 17, 19, 37, 119, 133, 259, 323, 337, 629, 703, 2261, 2359, 4403, 4921, 5729, 6403, 11951, 12469, 40103, 44821, 83657, 87283, 108851, 211973, 236911, 761957, 1483811, 1658377, 4027487, 28192409]

約数ペア:

[(1, 28192409), (7, 4027487), (17, 1658377), (19, 1483811), (37, 761957), (119, 236911), (133, 211973), (259, 108851), (323, 87283), (337, 83657), (629, 44821), (703, 40103), (2261, 12469), (2359, 11951), (4403, 6403), (4921, 5729)]