19937308

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{13807}}^1$

素因数の和:13849

約数の個数: 18

約数和(自身を含む): 36825936

約数和(自身を除く): 16888628

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 13807, 27614, 55228, 262333, 524666, 1049332, 4984327, 9968654, 19937308]

約数ペア:

[(1, 19937308), (2, 9968654), (4, 4984327), (19, 1049332), (38, 524666), (76, 262333), (361, 55228), (722, 27614), (1444, 13807)]