19130517

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{283}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 33671040

約数和(自身を除く): 14540523

約数列:

[1, 3, 7, 9, 21, 29, 37, 63, 87, 111, 203, 259, 261, 283, 333, 609, 777, 849, 1073, 1827, 1981, 2331, 2547, 3219, 5943, 7511, 8207, 9657, 10471, 17829, 22533, 24621, 31413, 57449, 67599, 73297, 73863, 94239, 172347, 219891, 303659, 517041, 659673, 910977, 2125613, 2732931, 6376839, 19130517]

約数ペア:

[(1, 19130517), (3, 6376839), (7, 2732931), (9, 2125613), (21, 910977), (29, 659673), (37, 517041), (63, 303659), (87, 219891), (111, 172347), (203, 94239), (259, 73863), (261, 73297), (283, 67599), (333, 57449), (609, 31413), (777, 24621), (849, 22533), (1073, 17829), (1827, 10471), (1981, 9657), (2331, 8207), (2547, 7511), (3219, 5943)]