21562060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{653}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 49222656

約数和(自身を除く): 27660596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 635, 653, 1270, 1306, 1651, 2540, 2612, 3265, 3302, 6530, 6604, 8255, 8489, 13060, 16510, 16978, 33020, 33956, 42445, 82931, 84890, 165862, 169780, 331724, 414655, 829310, 1078103, 1658620, 2156206, 4312412, 5390515, 10781030, 21562060]

約数ペア:

[(1, 21562060), (2, 10781030), (4, 5390515), (5, 4312412), (10, 2156206), (13, 1658620), (20, 1078103), (26, 829310), (52, 414655), (65, 331724), (127, 169780), (130, 165862), (254, 84890), (260, 82931), (508, 42445), (635, 33956), (653, 33020), (1270, 16978), (1306, 16510), (1651, 13060), (2540, 8489), (2612, 8255), (3265, 6604), (3302, 6530)]