21000273825

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16470803}}^1$

素因数の和:16470833

約数の個数: 24

約数和(自身を含む): 36762834528

約数和(自身を除く): 15762560703

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16470803, 49412409, 82354015, 247062045, 280003651, 411770075, 840010953, 1235310225, 1400018255, 4200054765, 7000091275, 21000273825]

約数ペア:

[(1, 21000273825), (3, 7000091275), (5, 4200054765), (15, 1400018255), (17, 1235310225), (25, 840010953), (51, 411770075), (75, 280003651), (85, 247062045), (255, 82354015), (425, 49412409), (1275, 16470803)]