18570657

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 31099200

約数和(自身を除く): 12528543

約数列:

[1, 3, 7, 19, 21, 49, 57, 61, 109, 133, 147, 183, 327, 399, 427, 763, 931, 1159, 1281, 2071, 2289, 2793, 2989, 3477, 5341, 6213, 6649, 8113, 8967, 14497, 16023, 19947, 24339, 43491, 46543, 56791, 101479, 126331, 139629, 170373, 304437, 325801, 378993, 884317, 977403, 2652951, 6190219, 18570657]

約数ペア:

[(1, 18570657), (3, 6190219), (7, 2652951), (19, 977403), (21, 884317), (49, 378993), (57, 325801), (61, 304437), (109, 170373), (133, 139629), (147, 126331), (183, 101479), (327, 56791), (399, 46543), (427, 43491), (763, 24339), (931, 19947), (1159, 16023), (1281, 14497), (2071, 8967), (2289, 8113), (2793, 6649), (2989, 6213), (3477, 5341)]