19724794

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8171}}^1$

素因数の和:8261

約数の個数: 16

約数和(自身を含む): 31772736

約数和(自身を除く): 12047942

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8171, 16342, 138907, 277814, 580141, 1160282, 9862397, 19724794]

約数ペア:

[(1, 19724794), (2, 9862397), (17, 1160282), (34, 580141), (71, 277814), (142, 138907), (1207, 16342), (2414, 8171)]