19709715

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{2089}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 34309440

約数和(自身を除く): 14599725

約数列:

[1, 3, 5, 15, 17, 37, 51, 85, 111, 185, 255, 555, 629, 1887, 2089, 3145, 6267, 9435, 10445, 31335, 35513, 77293, 106539, 177565, 231879, 386465, 532695, 1159395, 1313981, 3941943, 6569905, 19709715]

約数ペア:

[(1, 19709715), (3, 6569905), (5, 3941943), (15, 1313981), (17, 1159395), (37, 532695), (51, 386465), (85, 231879), (111, 177565), (185, 106539), (255, 77293), (555, 35513), (629, 31335), (1887, 10445), (2089, 9435), (3145, 6267)]