21893768

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1607}}^1$

素因数の和:1757

約数の個数: 32

約数和(自身を含む): 44573760

約数和(自身を除く): 22679992

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 131, 262, 524, 1048, 1607, 1703, 3214, 3406, 6428, 6812, 12856, 13624, 20891, 41782, 83564, 167128, 210517, 421034, 842068, 1684136, 2736721, 5473442, 10946884, 21893768]

約数ペア:

[(1, 21893768), (2, 10946884), (4, 5473442), (8, 2736721), (13, 1684136), (26, 842068), (52, 421034), (104, 210517), (131, 167128), (262, 83564), (524, 41782), (1048, 20891), (1607, 13624), (1703, 12856), (3214, 6812), (3406, 6428)]