221580359

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{5399}}^1$

素因数の和:5471

約数の個数: 32

約数和(自身を含む): 304819200

約数和(自身を除く): 83238841

約数列:

[1, 7, 11, 13, 41, 77, 91, 143, 287, 451, 533, 1001, 3157, 3731, 5399, 5863, 37793, 41041, 59389, 70187, 221359, 415723, 491309, 772057, 1549513, 2434949, 2877667, 5404399, 17044643, 20143669, 31654337, 221580359]

約数ペア:

[(1, 221580359), (7, 31654337), (11, 20143669), (13, 17044643), (41, 5404399), (77, 2877667), (91, 2434949), (143, 1549513), (287, 772057), (451, 491309), (533, 415723), (1001, 221359), (3157, 70187), (3731, 59389), (5399, 41041), (5863, 37793)]