20601705

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{467}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 35178624

約数和(自身を除く): 14576919

約数列:

[1, 3, 5, 15, 17, 51, 85, 173, 255, 467, 519, 865, 1401, 2335, 2595, 2941, 7005, 7939, 8823, 14705, 23817, 39695, 44115, 80791, 119085, 242373, 403955, 1211865, 1373447, 4120341, 6867235, 20601705]

約数ペア:

[(1, 20601705), (3, 6867235), (5, 4120341), (15, 1373447), (17, 1211865), (51, 403955), (85, 242373), (173, 119085), (255, 80791), (467, 44115), (519, 39695), (865, 23817), (1401, 14705), (2335, 8823), (2595, 7939), (2941, 7005)]