19919801

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2879}}^1$

素因数の和:2944

約数の個数: 16

約数和(自身を含む): 23639040

約数和(自身を除く): 3719239

約数列:

[1, 11, 17, 37, 187, 407, 629, 2879, 6919, 31669, 48943, 106523, 538373, 1171753, 1810891, 19919801]

約数ペア:

[(1, 19919801), (11, 1810891), (17, 1171753), (37, 538373), (187, 106523), (407, 48943), (629, 31669), (2879, 6919)]