20309138

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1286

約数の個数: 24

約数和(自身を含む): 33576768

約数和(自身を除く): 13267630

約数列:

[1, 2, 19, 23, 38, 46, 361, 437, 722, 874, 1223, 2446, 8303, 16606, 23237, 28129, 46474, 56258, 441503, 534451, 883006, 1068902, 10154569, 20309138]

約数ペア:

[(1, 20309138), (2, 10154569), (19, 1068902), (23, 883006), (38, 534451), (46, 441503), (361, 56258), (437, 46474), (722, 28129), (874, 23237), (1223, 16606), (2446, 8303)]