20972734

素因数分解:

$2^1\times {\mathrm{23}}^2\times {\mathrm{43}}^1\times {\mathrm{461}}^1$

素因数の和:552

約数の個数: 24

約数和(自身を含む): 33724152

約数和(自身を除く): 12751418

約数列:

[1, 2, 23, 43, 46, 86, 461, 529, 922, 989, 1058, 1978, 10603, 19823, 21206, 22747, 39646, 45494, 243869, 455929, 487738, 911858, 10486367, 20972734]

約数ペア:

[(1, 20972734), (2, 10486367), (23, 911858), (43, 487738), (46, 455929), (86, 243869), (461, 45494), (529, 39646), (922, 22747), (989, 21206), (1058, 19823), (1978, 10603)]