200721521

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{839}}^1$

素因数の和:1109

約数の個数: 32

約数和(自身を含む): 270950400

約数和(自身を除く): 70228879

約数列:

[1, 7, 11, 13, 77, 91, 143, 239, 839, 1001, 1673, 2629, 3107, 5873, 9229, 10907, 18403, 21749, 34177, 64603, 76349, 119977, 200521, 239239, 839839, 1403647, 2205731, 2606773, 15440117, 18247411, 28674503, 200721521]

約数ペア:

[(1, 200721521), (7, 28674503), (11, 18247411), (13, 15440117), (77, 2606773), (91, 2205731), (143, 1403647), (239, 839839), (839, 239239), (1001, 200521), (1673, 119977), (2629, 76349), (3107, 64603), (5873, 34177), (9229, 21749), (10907, 18403)]