19881201

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{6581}}^1$

素因数の和:6656

約数の個数: 16

約数和(自身を含む): 28434240

約数和(自身を除く): 8553039

約数列:

[1, 3, 19, 53, 57, 159, 1007, 3021, 6581, 19743, 125039, 348793, 375117, 1046379, 6627067, 19881201]

約数ペア:

[(1, 19881201), (3, 6627067), (19, 1046379), (53, 375117), (57, 348793), (159, 125039), (1007, 19743), (3021, 6581)]