30278913

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{293}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 50944320

約数和(自身を除く): 20665407

約数列:

[1, 3, 7, 19, 21, 37, 49, 57, 111, 133, 147, 259, 293, 399, 703, 777, 879, 931, 1813, 2051, 2109, 2793, 4921, 5439, 5567, 6153, 10841, 14357, 14763, 16701, 32523, 34447, 38969, 43071, 75887, 103341, 116907, 205979, 227661, 272783, 531209, 617937, 818349, 1441853, 1593627, 4325559, 10092971, 30278913]

約数ペア:

[(1, 30278913), (3, 10092971), (7, 4325559), (19, 1593627), (21, 1441853), (37, 818349), (49, 617937), (57, 531209), (111, 272783), (133, 227661), (147, 205979), (259, 116907), (293, 103341), (399, 75887), (703, 43071), (777, 38969), (879, 34447), (931, 32523), (1813, 16701), (2051, 14763), (2109, 14357), (2793, 10841), (4921, 6153), (5439, 5567)]