251315668569

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1\times {\mathrm{1461401}}^1$

素因数の和:1461861

約数の個数: 32

約数和(自身を含む): 404048424960

約数和(自身を除く): 152732756391

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 431, 1293, 3017, 8189, 9051, 24567, 57323, 171969, 1461401, 4384203, 10229807, 27766619, 30689421, 83299857, 194366333, 583098999, 629863831, 1889591493, 4409046817, 11967412789, 13227140451, 35902238367, 83771889523, 251315668569]

約数ペア:

[(1, 251315668569), (3, 83771889523), (7, 35902238367), (19, 13227140451), (21, 11967412789), (57, 4409046817), (133, 1889591493), (399, 629863831), (431, 583098999), (1293, 194366333), (3017, 83299857), (8189, 30689421), (9051, 27766619), (24567, 10229807), (57323, 4384203), (171969, 1461401)]