19742349

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^2$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 32417280

約数和(自身を除く): 12674931

約数列:

[1, 3, 11, 19, 23, 33, 37, 57, 69, 111, 209, 253, 407, 437, 627, 703, 759, 851, 1221, 1311, 1369, 2109, 2553, 4107, 4807, 7733, 9361, 14421, 15059, 16169, 23199, 26011, 28083, 31487, 45177, 48507, 78033, 94461, 177859, 286121, 346357, 533577, 598253, 858363, 1039071, 1794759, 6580783, 19742349]

約数ペア:

[(1, 19742349), (3, 6580783), (11, 1794759), (19, 1039071), (23, 858363), (33, 598253), (37, 533577), (57, 346357), (69, 286121), (111, 177859), (209, 94461), (253, 78033), (407, 48507), (437, 45177), (627, 31487), (703, 28083), (759, 26011), (851, 23199), (1221, 16169), (1311, 15059), (1369, 14421), (2109, 9361), (2553, 7733), (4107, 4807)]