2019201321

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1\times {\mathrm{307}}^1$

素因数の和:781

約数の個数: 32

約数和(自身を含む): 2776711168

約数和(自身を除く): 757509847

約数列:

[1, 3, 61, 127, 183, 283, 307, 381, 849, 921, 7747, 17263, 18727, 23241, 35941, 38989, 51789, 56181, 86881, 107823, 116967, 260643, 2192401, 2378329, 5299741, 6577203, 7134987, 11033887, 15899223, 33101661, 673067107, 2019201321]

約数ペア:

[(1, 2019201321), (3, 673067107), (61, 33101661), (127, 15899223), (183, 11033887), (283, 7134987), (307, 6577203), (381, 5299741), (849, 2378329), (921, 2192401), (7747, 260643), (17263, 116967), (18727, 107823), (23241, 86881), (35941, 56181), (38989, 51789)]