20984626

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{397}}^1$

素因数の和:538

約数の個数: 32

約数和(自身を含む): 36106560

約数和(自身を除く): 15121934

約数列:

[1, 2, 13, 19, 26, 38, 107, 214, 247, 397, 494, 794, 1391, 2033, 2782, 4066, 5161, 7543, 10322, 15086, 26429, 42479, 52858, 84958, 98059, 196118, 552227, 807101, 1104454, 1614202, 10492313, 20984626]

約数ペア:

[(1, 20984626), (2, 10492313), (13, 1614202), (19, 1104454), (26, 807101), (38, 552227), (107, 196118), (214, 98059), (247, 84958), (397, 52858), (494, 42479), (794, 26429), (1391, 15086), (2033, 10322), (2782, 7543), (4066, 5161)]