20536215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1493}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 37863936

約数和(自身を除く): 17327721

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 131, 393, 655, 917, 1493, 1965, 2751, 4479, 4585, 7465, 10451, 13755, 22395, 31353, 52255, 156765, 195583, 586749, 977915, 1369081, 2933745, 4107243, 6845405, 20536215]

約数ペア:

[(1, 20536215), (3, 6845405), (5, 4107243), (7, 2933745), (15, 1369081), (21, 977915), (35, 586749), (105, 195583), (131, 156765), (393, 52255), (655, 31353), (917, 22395), (1493, 13755), (1965, 10451), (2751, 7465), (4479, 4585)]