21246549

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10686891

約数列:

[1, 3, 17, 23, 51, 59, 69, 177, 307, 391, 921, 1003, 1173, 1357, 3009, 4071, 5219, 7061, 15657, 18113, 21183, 23069, 54339, 69207, 120037, 307921, 360111, 416599, 923763, 1249797, 7082183, 21246549]

約数ペア:

[(1, 21246549), (3, 7082183), (17, 1249797), (23, 923763), (51, 416599), (59, 360111), (69, 307921), (177, 120037), (307, 69207), (391, 54339), (921, 23069), (1003, 21183), (1173, 18113), (1357, 15657), (3009, 7061), (4071, 5219)]