31324419

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 53913600

約数和(自身を除く): 22589181

約数列:

[1, 3, 7, 9, 21, 47, 63, 71, 141, 149, 213, 329, 423, 447, 497, 639, 987, 1043, 1341, 1491, 2961, 3129, 3337, 4473, 7003, 9387, 10011, 10579, 21009, 23359, 30033, 31737, 49021, 63027, 70077, 74053, 95211, 147063, 210231, 222159, 441189, 497213, 666477, 1491639, 3480491, 4474917, 10441473, 31324419]

約数ペア:

[(1, 31324419), (3, 10441473), (7, 4474917), (9, 3480491), (21, 1491639), (47, 666477), (63, 497213), (71, 441189), (141, 222159), (149, 210231), (213, 147063), (329, 95211), (423, 74053), (447, 70077), (497, 63027), (639, 49021), (987, 31737), (1043, 30033), (1341, 23359), (1491, 21009), (2961, 10579), (3129, 10011), (3337, 9387), (4473, 7003)]