138804578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{70891}}^1$

素因数の和:70993

約数の個数: 16

約数和(自身を含む): 229690080

約数和(自身を除く): 90885502

約数列:

[1, 2, 11, 22, 89, 178, 979, 1958, 70891, 141782, 779801, 1559602, 6309299, 12618598, 69402289, 138804578]

約数ペア:

[(1, 138804578), (2, 69402289), (11, 12618598), (22, 6309299), (89, 1559602), (178, 779801), (979, 141782), (1958, 70891)]