397171411

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20113}}^1$

素因数の和:20171

約数の個数: 24

約数和(自身を含む): 513631104

約数和(自身を除く): 116459693

約数列:

[1, 7, 13, 31, 49, 91, 217, 403, 637, 1519, 2821, 19747, 20113, 140791, 261469, 623503, 985537, 1830283, 4364521, 8105539, 12811981, 30551647, 56738773, 397171411]

約数ペア:

[(1, 397171411), (7, 56738773), (13, 30551647), (31, 12811981), (49, 8105539), (91, 4364521), (217, 1830283), (403, 985537), (637, 623503), (1519, 261469), (2821, 140791), (19747, 20113)]