20489794

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{307}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 35392896

約数和(自身を除く): 14903102

約数列:

[1, 2, 13, 17, 26, 34, 151, 221, 302, 307, 442, 614, 1963, 2567, 3926, 3991, 5134, 5219, 7982, 10438, 33371, 46357, 66742, 67847, 92714, 135694, 602641, 788069, 1205282, 1576138, 10244897, 20489794]

約数ペア:

[(1, 20489794), (2, 10244897), (13, 1576138), (17, 1205282), (26, 788069), (34, 602641), (151, 135694), (221, 92714), (302, 67847), (307, 66742), (442, 46357), (614, 33371), (1963, 10438), (2567, 7982), (3926, 5219), (3991, 5134)]