18438147

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{479}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 33546240

約数和(自身を除く): 15108093

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 63, 91, 117, 141, 273, 329, 423, 479, 611, 819, 987, 1437, 1833, 2961, 3353, 4277, 4311, 5499, 6227, 10059, 12831, 18681, 22513, 30177, 38493, 43589, 56043, 67539, 130767, 157591, 202617, 292669, 392301, 472773, 878007, 1418319, 2048683, 2634021, 6146049, 18438147]

約数ペア:

[(1, 18438147), (3, 6146049), (7, 2634021), (9, 2048683), (13, 1418319), (21, 878007), (39, 472773), (47, 392301), (63, 292669), (91, 202617), (117, 157591), (141, 130767), (273, 67539), (329, 56043), (423, 43589), (479, 38493), (611, 30177), (819, 22513), (987, 18681), (1437, 12831), (1833, 10059), (2961, 6227), (3353, 5499), (4277, 4311)]