20753512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{463}}^1$

素因数の和:913

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 21340568

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 431, 463, 862, 926, 1724, 1852, 3448, 3704, 5603, 6019, 11206, 12038, 22412, 24076, 44824, 48152, 199553, 399106, 798212, 1596424, 2594189, 5188378, 10376756, 20753512]

約数ペア:

[(1, 20753512), (2, 10376756), (4, 5188378), (8, 2594189), (13, 1596424), (26, 798212), (52, 399106), (104, 199553), (431, 48152), (463, 44824), (862, 24076), (926, 22412), (1724, 12038), (1852, 11206), (3448, 6019), (3704, 5603)]