20687640357

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1\times {\mathrm{29983}}^1$

素因数の和:30249

約数の個数: 32

約数和(自身を含む): 29740290048

約数和(自身を除く): 9052649691

約数列:

[1, 3, 17, 51, 83, 163, 249, 489, 1411, 2771, 4233, 8313, 13529, 29983, 40587, 89949, 229993, 509711, 689979, 1529133, 2488589, 4887229, 7465767, 14661687, 42306013, 83082893, 126918039, 249248679, 405640007, 1216920021, 6895880119, 20687640357]

約数ペア:

[(1, 20687640357), (3, 6895880119), (17, 1216920021), (51, 405640007), (83, 249248679), (163, 126918039), (249, 83082893), (489, 42306013), (1411, 14661687), (2771, 7465767), (4233, 4887229), (8313, 2488589), (13529, 1529133), (29983, 689979), (40587, 509711), (89949, 229993)]