205020051

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{1223}}^1$

素因数の和:1435

約数の個数: 32

約数和(自身を含む): 306685440

約数和(自身を除く): 101665389

約数列:

[1, 3, 17, 19, 51, 57, 173, 323, 519, 969, 1223, 2941, 3287, 3669, 8823, 9861, 20791, 23237, 55879, 62373, 69711, 167637, 211579, 395029, 634737, 1185087, 3596843, 4020001, 10790529, 12060003, 68340017, 205020051]

約数ペア:

[(1, 205020051), (3, 68340017), (17, 12060003), (19, 10790529), (51, 4020001), (57, 3596843), (173, 1185087), (323, 634737), (519, 395029), (969, 211579), (1223, 167637), (2941, 69711), (3287, 62373), (3669, 55879), (8823, 23237), (9861, 20791)]