21031764

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4349}}^1$

素因数の和:4400

約数の個数: 48

約数和(自身を含む): 54566400

約数和(自身を除く): 33534636

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 186, 372, 403, 806, 1209, 1612, 2418, 4349, 4836, 8698, 13047, 17396, 26094, 52188, 56537, 113074, 134819, 169611, 226148, 269638, 339222, 404457, 539276, 678444, 808914, 1617828, 1752647, 3505294, 5257941, 7010588, 10515882, 21031764]

約数ペア:

[(1, 21031764), (2, 10515882), (3, 7010588), (4, 5257941), (6, 3505294), (12, 1752647), (13, 1617828), (26, 808914), (31, 678444), (39, 539276), (52, 404457), (62, 339222), (78, 269638), (93, 226148), (124, 169611), (156, 134819), (186, 113074), (372, 56537), (403, 52188), (806, 26094), (1209, 17396), (1612, 13047), (2418, 8698), (4349, 4836)]