20320503

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{547}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 32616960

約数和(自身を除く): 12296457

約数列:

[1, 3, 7, 21, 29, 61, 87, 183, 203, 427, 547, 609, 1281, 1641, 1769, 3829, 5307, 11487, 12383, 15863, 33367, 37149, 47589, 100101, 111041, 233569, 333123, 700707, 967643, 2902929, 6773501, 20320503]

約数ペア:

[(1, 20320503), (3, 6773501), (7, 2902929), (21, 967643), (29, 700707), (61, 333123), (87, 233569), (183, 111041), (203, 100101), (427, 47589), (547, 37149), (609, 33367), (1281, 15863), (1641, 12383), (1769, 11487), (3829, 5307)]