20461965

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2767}}^1$

素因数の和:2821

約数の個数: 32

約数和(自身を含む): 35873280

約数和(自身を除く): 15411315

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2767, 7395, 8301, 13835, 41505, 47039, 80243, 141117, 235195, 240729, 401215, 705585, 1203645, 1364131, 4092393, 6820655, 20461965]

約数ペア:

[(1, 20461965), (3, 6820655), (5, 4092393), (15, 1364131), (17, 1203645), (29, 705585), (51, 401215), (85, 240729), (87, 235195), (145, 141117), (255, 80243), (435, 47039), (493, 41505), (1479, 13835), (2465, 8301), (2767, 7395)]