20525589

素因数分解:

$3^3\times 7^1\times {\mathrm{223}}^1\times {\mathrm{487}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 34979840

約数和(自身を除く): 14454251

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 223, 487, 669, 1461, 1561, 2007, 3409, 4383, 4683, 6021, 10227, 13149, 14049, 30681, 42147, 92043, 108601, 325803, 760207, 977409, 2280621, 2932227, 6841863, 20525589]

約数ペア:

[(1, 20525589), (3, 6841863), (7, 2932227), (9, 2280621), (21, 977409), (27, 760207), (63, 325803), (189, 108601), (223, 92043), (487, 42147), (669, 30681), (1461, 14049), (1561, 13149), (2007, 10227), (3409, 6021), (4383, 4683)]