20197788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3011}}^1$

素因数の和:3074

約数の個数: 48

約数和(自身を含む): 51950976

約数和(自身を除く): 31753188

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 172, 258, 516, 559, 1118, 1677, 2236, 3011, 3354, 6022, 6708, 9033, 12044, 18066, 36132, 39143, 78286, 117429, 129473, 156572, 234858, 258946, 388419, 469716, 517892, 776838, 1553676, 1683149, 3366298, 5049447, 6732596, 10098894, 20197788]

約数ペア:

[(1, 20197788), (2, 10098894), (3, 6732596), (4, 5049447), (6, 3366298), (12, 1683149), (13, 1553676), (26, 776838), (39, 517892), (43, 469716), (52, 388419), (78, 258946), (86, 234858), (129, 156572), (156, 129473), (172, 117429), (258, 78286), (516, 39143), (559, 36132), (1118, 18066), (1677, 12044), (2236, 9033), (3011, 6708), (3354, 6022)]