18971942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{5711}}^1$

素因数の和:5875

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 12284122

約数列:

[1, 2, 11, 22, 151, 302, 1661, 3322, 5711, 11422, 62821, 125642, 862361, 1724722, 9485971, 18971942]

約数ペア:

[(1, 18971942), (2, 9485971), (11, 1724722), (22, 862361), (151, 125642), (302, 62821), (1661, 11422), (3322, 5711)]