21660474

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{1277}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 47480256

約数和(自身を除く): 25819782

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 257, 514, 771, 1277, 1542, 2554, 2827, 3831, 5654, 7662, 8481, 14047, 16962, 28094, 42141, 84282, 328189, 656378, 984567, 1969134, 3610079, 7220158, 10830237, 21660474]

約数ペア:

[(1, 21660474), (2, 10830237), (3, 7220158), (6, 3610079), (11, 1969134), (22, 984567), (33, 656378), (66, 328189), (257, 84282), (514, 42141), (771, 28094), (1277, 16962), (1542, 14047), (2554, 8481), (2827, 7662), (3831, 5654)]