20394972

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43579}}^1$

素因数の和:43602

約数の個数: 36

約数和(自身を含む): 55520920

約数和(自身を除く): 35125948

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43579, 87158, 130737, 174316, 261474, 392211, 522948, 566527, 784422, 1133054, 1568844, 1699581, 2266108, 3399162, 5098743, 6798324, 10197486, 20394972]

約数ペア:

[(1, 20394972), (2, 10197486), (3, 6798324), (4, 5098743), (6, 3399162), (9, 2266108), (12, 1699581), (13, 1568844), (18, 1133054), (26, 784422), (36, 566527), (39, 522948), (52, 392211), (78, 261474), (117, 174316), (156, 130737), (234, 87158), (468, 43579)]