21950301

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 32140800

約数和(自身を除く): 10190499

約数列:

[1, 3, 19, 57, 59, 61, 107, 177, 183, 321, 1121, 1159, 2033, 3363, 3477, 3599, 6099, 6313, 6527, 10797, 18939, 19581, 68381, 119947, 124013, 205143, 359841, 372039, 385093, 1155279, 7316767, 21950301]

約数ペア:

[(1, 21950301), (3, 7316767), (19, 1155279), (57, 385093), (59, 372039), (61, 359841), (107, 205143), (177, 124013), (183, 119947), (321, 68381), (1121, 19581), (1159, 18939), (2033, 10797), (3363, 6527), (3477, 6313), (3599, 6099)]