13219557

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 20385792

約数和(自身を除く): 7166235

約数列:

[1, 3, 13, 17, 39, 51, 127, 157, 221, 381, 471, 663, 1651, 2041, 2159, 2669, 4953, 6123, 6477, 8007, 19939, 28067, 34697, 59817, 84201, 104091, 259207, 338963, 777621, 1016889, 4406519, 13219557]

約数ペア:

[(1, 13219557), (3, 4406519), (13, 1016889), (17, 777621), (39, 338963), (51, 259207), (127, 104091), (157, 84201), (221, 59817), (381, 34697), (471, 28067), (663, 19939), (1651, 8007), (2041, 6477), (2159, 6123), (2669, 4953)]