18848817

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 31595200

約数和(自身を除く): 12746383

約数列:

[1, 3, 9, 13, 19, 39, 57, 61, 117, 139, 171, 183, 247, 417, 549, 741, 793, 1159, 1251, 1807, 2223, 2379, 2641, 3477, 5421, 7137, 7923, 8479, 10431, 15067, 16263, 23769, 25437, 34333, 45201, 76311, 102999, 110227, 135603, 161101, 308997, 330681, 483303, 992043, 1449909, 2094313, 6282939, 18848817]

約数ペア:

[(1, 18848817), (3, 6282939), (9, 2094313), (13, 1449909), (19, 992043), (39, 483303), (57, 330681), (61, 308997), (117, 161101), (139, 135603), (171, 110227), (183, 102999), (247, 76311), (417, 45201), (549, 34333), (741, 25437), (793, 23769), (1159, 16263), (1251, 15067), (1807, 10431), (2223, 8479), (2379, 7923), (2641, 7137), (3477, 5421)]