212667

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1$

素因数の和:83

約数の個数: 32

約数和(自身を含む): 376320

約数和(自身を除く): 163653

約数列:

[1, 3, 7, 13, 19, 21, 39, 41, 57, 91, 123, 133, 247, 273, 287, 399, 533, 741, 779, 861, 1599, 1729, 2337, 3731, 5187, 5453, 10127, 11193, 16359, 30381, 70889, 212667]

約数ペア:

[(1, 212667), (3, 70889), (7, 30381), (13, 16359), (19, 11193), (21, 10127), (39, 5453), (41, 5187), (57, 3731), (91, 2337), (123, 1729), (133, 1599), (247, 861), (273, 779), (287, 741), (399, 533)]