21407628

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1277}}^1$

素因数の和:1422

約数の個数: 48

約数和(自身を含む): 54964224

約数和(自身を除く): 33556596

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 127, 132, 254, 381, 508, 762, 1277, 1397, 1524, 2554, 2794, 3831, 4191, 5108, 5588, 7662, 8382, 14047, 15324, 16764, 28094, 42141, 56188, 84282, 162179, 168564, 324358, 486537, 648716, 973074, 1783969, 1946148, 3567938, 5351907, 7135876, 10703814, 21407628]

約数ペア:

[(1, 21407628), (2, 10703814), (3, 7135876), (4, 5351907), (6, 3567938), (11, 1946148), (12, 1783969), (22, 973074), (33, 648716), (44, 486537), (66, 324358), (127, 168564), (132, 162179), (254, 84282), (381, 56188), (508, 42141), (762, 28094), (1277, 16764), (1397, 15324), (1524, 14047), (2554, 8382), (2794, 7662), (3831, 5588), (4191, 5108)]