20805044

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{7549}}^1$

素因数の和:7619

約数の個数: 24

約数和(自身を含む): 39954600

約数和(自身を除く): 19149556

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 212, 689, 1378, 2756, 7549, 15098, 30196, 98137, 196274, 392548, 400097, 800194, 1600388, 5201261, 10402522, 20805044]

約数ペア:

[(1, 20805044), (2, 10402522), (4, 5201261), (13, 1600388), (26, 800194), (52, 400097), (53, 392548), (106, 196274), (212, 98137), (689, 30196), (1378, 15098), (2756, 7549)]