81521438

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{25847}}^1$

素因数の和:25951

約数の個数: 16

約数和(自身を含む): 130273920

約数和(自身を除く): 48752482

約数列:

[1, 2, 19, 38, 83, 166, 1577, 3154, 25847, 51694, 491093, 982186, 2145301, 4290602, 40760719, 81521438]

約数ペア:

[(1, 81521438), (2, 40760719), (19, 4290602), (38, 2145301), (83, 982186), (166, 491093), (1577, 51694), (3154, 25847)]